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Usually it's my kids who break stuff, and I'm the one who gets to fix it.

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But when corrosion in my DIY pool water cooling setup caused a catastrophic leak on his gaming PC,

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it seemed like a perfect opportunity to flip the script.

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And sure, it's my fault it broke, but what good are kids if you can't put them to work?

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And besides, what a great opportunity for some learning.

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Yay, learning. You can learn the name of today's sponsor.

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Just because you have a spill on your computer doesn't necessarily mean that it's dead.

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If you can unplug it, clean it, dry it off, and fire it back up, it might work,

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just like the PC that we intentionally spilled coke on.

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But that's not what happened here. This system sat for hours in a puddle of water and its own corroded gunk.

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It should be dead, but somehow miraculously it survived, so then no problem.

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All I've got to do is have my son put his water cooling back in, right?

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Wrong. Because if we do that, it's probably going to corrode again.

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So we've got to figure out the root cause. The best theory we have is that this was caused by a ground loop between the pump and the computers,

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which causes a slight voltage differential which can drastically accelerate corrosion.

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Jake is actually working right now on the video that maybe you guys have seen,

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where we added an isolation transformer to the pumps and grounded the rack, which means,

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Hey, come on, boy. It's time to learn how to clean a really crusty water block.

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What am I ever going to do this again? Hopefully never, if Jake does all of this right.

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Probably soon. But if it happens again, we're going to be in relatively okay shape

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because one of the other things we're going to be installing in the boy's computer is a leak sensor.

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Well, what are you waiting for? Let's go. Luckily, the only things that got eaten away were the fittings.

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So all we've got to do now is remove all of the gunk that was deposited from the fittings onto these blocks.

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Now, the bad news for you is I accidentally left my brasset at the office.

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So you get to try this Mother's Magan Aluminum Polish,

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which I don't know if it's going to work, or Goof Off, which I really think is not going to work.

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Here's a toothbrush. You'll need water.

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Okay, that's not doing much. Let's try some Mag Polish.

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That's probably not what that's supposed to look like. Oh, it smells so bad.

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Okay, let's see. Very similar to how it did before.

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It really does, doesn't it? I wonder if pick action is a better bet.

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That does actually seem to be a lot better. Do I really want to get a dental pick into all these little bins?

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Well, you're not doing it. Oh, yeah.

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I'll go get you a dental pick. I changed my mind. While I thought I had dental picks, it turns out I actually don't.

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But what I do have is a lot of X-Acto knife blades.

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Oh, wow, yeah, this comes off really good. Don't cut toward your finger like that,

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because if you put that into your thumb, we will have to go to the ER room.

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And you'll need a tetanus shot like me. I got attacked by a cat.

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So fun. I wouldn't rather be doing anything else.

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I'll tell you what, boy. I'm nothing if not fair. You clean that piece.

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I'll clean these three pieces. OK?

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Good deal? Maybe. What I didn't tell my son is there is another way.

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I brought an ultrasonic cleaner home.

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I could clean so much water block with this bad boy.

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Got some general purpose ultrasonic cleaner, lemon scented.

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There they go. I hope I have enough of this.

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I only have the one jug. Extra strength formula.

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This product is a concentrate. One part product with 10 parts water.

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I have created some work for myself.

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I don't even know what color the back is supposed to be.

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Just salvage some of that back.

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Oh, yeah, buddy.

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And here's some water.

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Why don't we kick things off with the top of the CPU block? All of this stuff was pretty easy to get the gunk out of.

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I actually did that before. But what's hard to get at is these threads in here.

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This should help with that in a big way. Let's heat it up.

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Right, I forgot what a horrible noise it makes. OK, let's throw this bad boy in there.

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Dude, ultrasonic cleaners are freaking awesome.

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Can I use the ultrasonic cleaner?

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Sure. When were you going to tell me about the ultrasonic cleaner?

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It wasn't. These are great. They use ultrasonic vibrations to create these little scrubby

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micro bubbles that will remove any debris and crud from the surface

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of like a water block or a piece of jewelry or whatever the case may be.

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Wow. Not that we necessarily need it. You made really good progress.

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Yay. The boy can do work when he wants to. Check this out.

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Oh my God. Yeah, sorry. That is awful. Yeah, I know.

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Whoa, look at it rip off this corrosion on this bad boy.

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You can actually see big flakes coming off this guy. Check that out.

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Now it's time to pull the system. So go around to the back, get it turned off and unplugged.

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We're going to be doing two things. We're going to unjerry rig it. So you can see I threw a replacement air-cooled graphics card in here.

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That's going to have to go. And we're going to add a leak sensor.

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Now Jake is working on the parts that will do the actual monitoring and handle

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automations to turn the systems off in the event of a leak.

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Meanwhile, we will be installing this leak sensor.

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This appears to be too. Are we expecting there to be two leak sensors?

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They just came in packs of two. How's that supposed to sense when there's a leak?

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These are powered by five volt DC power. And basically what happens is if the two probes come into contact with water

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at the same time, the water is going to act as a wire,

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which is going to connect our powered probe to our sense probe.

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I mean, here's the thing, like realistically the water is going to pour out

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and then probably just dump down to the next server. So these sensors inside the computers, they might not do that much.

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So we're also going to add sensors to the floor and that'll probably be what saves us.

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Hey, we just got new cats. Do you want to come meet the cats? Come on, let's come meet the cats.

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They have fleas, so they have to hang out in here for a few more weeks until they're old enough for a flea treatment.

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And then that might actually be a good thing anyway because it'll give the other cats some time to acclimate to the idea

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that something doesn't smell right. Anyway, here they are.

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This might end up being a side adventure. LMG.GG slash Floatplane.

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Now that the new cat adventure is over, let's get some stuff mounted.

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Nice. Okay, now we got to strip it. Wouldn't something like this have a strip?

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It does. Then use this. Yeah, but it only works on this part.

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So then you figure out what gauge your wire is. You can look it up or you can just not bother.

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Okay. And then squeeze as hard as I can. Squeeze as hard as you can.

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Ow, it hurts my hands.

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Maybe squeeze harder than you can. Next time. It hurts.

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You know, you're going to get me made fun of on the Internet for having a boy with soft hands.

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I don't even like put product on or anything. My hands are just already soft.

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I'm shamed. Just tell them to not shame you. Yeah, they listen to me.

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Why do they watch your videos if they're not going to listen to you?

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That's a good question.

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That's great. That's not going to short out on anything.

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Ow, my hands.

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Shamed.

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Here's what we're going to do. We're going to slide a little thing in there.

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Like that. Then we're going to put this down on it.

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There we go. And we slide this out. And theoretically, we are exactly one paper width off the bottom.

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Now you got your screwdriver, right? Yeah. Okay. We need to remove this power supply.

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And we have a lot to do. I should go check on the ultrasonic.

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Oh, it stinks in here.

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Oh, you're going to put those in there?

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Yeah. Why not? You can just drain it out of here outside.

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Yeah, but I don't want to drain it. I want to maybe use it for some more stuff.

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Maybe I could clean your mom's jewelry. Would you ever even know how scuffed this was?

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Ow, ow, ow. Okay.

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Wow. That looks like freaking not quite new, but certainly a lot better.

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This is great. Check this out, Jake.

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That looks pretty gross still. What? No, that's copper.

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No, I meant all this. Can I see this? Yeah, Linus, she said, please, that's a magic word.

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No respect. What the? There's still some shmoo in here.

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So we might have to do another quick pass. While this is all still really soft and easy to get out,

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and then maybe we'll throw it in the ultrasonic cleaner again.

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Now is the perfect time to put our GPU back together.

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I did have to scrape some of this manually, but after the ultrasonic cleaner, man, does it ever come off easily?

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Since my GPU block is now clean, I'm ready to start putting my graphics card back together.

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And the good news is all of my thermal pads survived.

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What are thermal pads? Well, here, I can show you.

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There's stuff that makes heat, and we want to move that heat away from it

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so that it doesn't get too hot and die. But because they might be mounted a little bit higher

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or a little bit lower, we can't just put a piece of metal right against it

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because our piece of metal is going to be perfectly flat

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and it might not make contact with all of them. So a thermal pad,

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it's like a little pad that is thermally conductive so it can carry the heat through the pad and into our metal.

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You know how your computer runs games really fast? Without thermal pads, he no work.

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We got to make sure that this O-ring doesn't get crushed. If this gets crushed or it has anything in the way,

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pretty much game over.

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You guys, I asked for pipe cleaners. That's a pipe cleaner.

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I know, but this is an arts and crafts pipe cleaner. What pipe cleaners do I use?

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They try to clean the threads of the inside here and they bring me the fuzzy kind.

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I'll show you. This one? Yes, this.

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But a small one.

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Oh, that guy.

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Oh, no. Boy.

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Oh, he let the O-rings fall down.

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They're everywhere now. They were five when I put them in.

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Well, where's the fifth one? Oh, I think it went down the drain hole.

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Yes, it's there. Okay, good. Okay, well, no, don't put them there.

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Put them in here. Let's get this thing assembled. Let's go.

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I didn't take this one apart so I don't know where they go. How'd they go where they go?

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It occurs to me as I'm sitting here thermal pasting this GPU for reassembly

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that we don't actually know that it still works. While nothing else in the system failed,

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I don't think we ever actually tried booting it with the original GPUs.

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So now I would never recommend running

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a water-cooled GPU without any water in it.

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But hey, it's the do as I say, not as I do show, right?

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Let's see if this GPU works. If we get an output, I'm just gonna throw it in the system and call it good.

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Hey, look at that. We got an output. Let's go ahead and throw the system together.

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Oh, that's exciting. Might be a good time to get some of these tubes

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out of the way. How bad are these? Some of them don't even look dirty inside.

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Should I just replace all of them? I feel like I should just replace all of them.

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Actually, before I do that, I should test our new power supply bracket and make sure that it works.

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Oh, so perfect. Uh-oh.

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Did we leave enough clearance for the barrel jack? Oh, no.

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Oh, it's perfect. It's flawless.

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Look at that. Professional. So our five-volt leak sensor is gonna go in there like that

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and our fiber objects go in like that and the whole thing goes in here like that.

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Wait. No, there's not enough clearance for the barrel jack

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and the power supply.

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New solution.

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No nut to secure the DC barrel jack thing because, I mean, I don't know.

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Does it really need one? It's kind of in there, right?

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And it fits. Yay.

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You know what? This is kind of crazy, but because of the friction with the power supply,

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it's actually really secure in there, even without the nut.

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Like, I cannot move it. All right, we're back on track. Let's get the leak sensor back hooked up.

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There, I spared you guys a lot of the boring details, but she's completely re-plumbed

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and everything is ready to close up. I'm afraid I'm not optimistic enough

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to close up the top panel and slide it into its spot in the rack.

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So we're just gonna hook it on the top where it was before,

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hook up the water pipes at the back and see what happens.

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Boop. Boop.

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I don't have to power on the system in order to get liquid to flow through it.

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So this is a perfect time to see if anything's leaking.

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Everything seems fine. I mean, it should, you know,

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we removed the corroded fittings, but when you disassemble and reassemble water blocks,

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you can make mistakes, right? Dude, I'm stressed.

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I don't remember the last time I was this stressed to turn on a computer.

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Let's go see if she fires up. This is the monitor that's supposed to be lit up.

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Give her a sec. She's memory training.

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The memory's trained. Oh, thank God. Woo-hoo!

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Let's see how the temps are. All right, well,

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I should have repasted the CPU block. You didn't repaste the CPU block?

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Well, that was pasted on there. Oh my God. I'm gonna repaste it.

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I even brought PTM7950 from LTTstore.com for you.

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Oh, I didn't see it. In fairness to me, there was a solid chance

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that none of this was gonna work at all and any time we spent on it was a complete waste.

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So now that I know that the thing actually works,

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I can just pop this off, throw some more pasted on. Yeah, yeah, that's not enough pasted.

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Throw some more pasted on there and we'll call it a day. Ah!

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Thermal pad time. Hmm, temps are exactly the same.

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I bet the flow rate is lower from adding the filter.

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It's still going 10 liters per minute. That's a lot.

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Divided by seven systems. I think this might be a flow rate thing.

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Was it like that before? Hmm, I don't think so.

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I mean, I can also check one of the other systems.

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Yeah, this one's the same. Realistically, they aren't 3D rendering on these systems.

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But in the long term, it might be nice to solve the flow rate issue,

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maybe a second inline pump. The more important one is the GPU anyway.

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So let's get that started. This one I'm expecting to be okay.

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Oh, well that's great. This GPU is under 40 degrees though.

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And it's pulling 220 watts.

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Alright, gaming systems for gamers. Do they game?

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Casual 175 frames per second in Halo Infinite on medium 1440p.

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Oh, no. Oh, no, don't kill me, please.

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Oh, no, no. Oh, no, no. Got him.

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Oh, double kill. Oh, dang it. It's a lot easier playing on my kid's account.

215
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His MMR is not as high. Alright, cool.

216
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Well, that's enough of that.

217
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Time to throw this thing back in the rack.

218
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I may have made a slight mistake. What'd you do?

219
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I buttoned everything up before we actually tested the leak sensor that's in there.

220
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I can unbutton it. Yeah. Alright.

221
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Is this going to hold? Yeah, seems like it'll hold.

222
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Okay, leak test time. What if something catastrophic happens?

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Theoretically, all we've got to do now is take the other end of that barrel jack lead,

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hook it into this leak sensor, which you guys would have seen in the last video.

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Now I just... Pour some water in the computer.

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Basically, because it failed here last time, I put the leak sensor right there.

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So if this tube just comes flying off again, she's right there, bud.

228
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She's right there. Oh, my God. Are you actually...

229
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What? Oh, is it off? Yeah, yeah, yeah.

230
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Computer's off. Chill. Oh, my God.

231
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Okay. All clear on sensor eight, which is the leak sensor. So in theory, when you bridge these connections with water, leak detected.

232
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Okay. That's a lot of water. Paper towel, please.

233
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Oh. Okay. I mean, it's not that much water.

234
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Yeah, it would mean it would. It just is a lot of water for what I would like to put into a computer that has other computers running beneath it.

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Still registering? Still registering. Oh, wow.

236
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Well, that's really good. Actually, I can see how it's working.

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You don't need water between them. Just enough surface tension.

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On both tips. And then it registers.

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So that means we've got the distance just right on these. We don't actually need a ton of water.

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Right. Because the chassis is metal. It's using the chassis as a circuit, which is usually a really great thing to do with your computer.

241
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Well, look. It's only five volts. It should be fine.

242
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It's working. 0.6.

243
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Come on. Blow harder. 0.4.

244
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0.3. Keep going. I'm going to pass out.

245
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That would be funny. Oh, man.

246
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Oh, lightheaded. Oh, okay. It's clear now.

247
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If this registers a leak in the future, just come in here and start blowing on it.

248
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I mean, I was going to say, well, no, I got to come in here and start ripping power out of things.

249
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But I kind of don't. Well, the UPS as I do, but everything else is going to be shut down.

250
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I did bring you brackets to move your UPS if you want to do that at some point.

251
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I probably should. In a perfect world, we'll put in some concrete anchors or something like that.

252
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And we'll just mount them to the wall over there. And then what's nice is that'll actually give me another six rack units of space in the rack.

253
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Not that I need more machines, but you never know.

254
00:18:38,700 --> 00:18:46,700
I guess now's a good time for us to change out the coolant in these systems to just in case everything else wasn't enough,

255
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make real good and sure that she doesn't corrode again.

256
00:18:49,700 --> 00:18:52,700
Why is he so giddy about this coolant?

257
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This is G11 antifreeze, which conveniently is the same stuff you put in BMWs.

258
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Why does it always have to come back to BMWs with you?

259
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Like, are you on their payroll? I just looked at the forums and everyone was like, yeah, just get G11.

260
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That's the stuff that works good for this. So this is the real stuff then?

261
00:19:07,700 --> 00:19:10,700
Yeah, I mean, most antifreeze protects most metals.

262
00:19:10,700 --> 00:19:13,700
This is just like a high quality made in Germany. Good one.

263
00:19:13,700 --> 00:19:17,700
Is this concentrate? It is concentrate. That's a 10 gallon tank.

264
00:19:17,700 --> 00:19:21,700
Let's throw both of these in. It's blue.

265
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Wow. Look at that good stuff.

266
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One thing to note is that antifreeze does technically reduce the cooling performance a bit.

267
00:19:30,700 --> 00:19:35,700
Yeah, it's not catastrophic though. A couple percent realistically and we're not going like a 50-50 concentration,

268
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which is where you would really notice it. What we won't have protection against though is the non-conductive nature of pure water.

269
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This is probably going to contribute to the conductivity. Yeah, you didn't have pure water anyways.

270
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Well, it was pure enough that that system survived.

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No more corrosion. Corrosion be gone.

272
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Oh, hey, look at the down there. Oh, it's so pretty.

273
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I think we need to flush out the existing stuff though.

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I'm kind of thinking we stick the freshwater hose in there and leave the drain open for a while.

275
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Oh, okay. Flushing this loop about as interesting as watching paint dry.

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So you guys are just going to have to take my word for it that I swapped it out for the other coolant

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and take my word about our sponsor. If you guys enjoyed this video, maybe check out the last part where we looked at the aftermath of the leak

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and discovered all the corroded components.