Koolance LIQ-702BU-B 702 Liquid Coolant, High-Performance, UV Blue, 700ml (24 fl oz)

Been using this brand for years. Kept my water pump in my pc running since 2008. Just recently replaced the pump due to concern it's gonna give out sometime, but to have a pump run 16 years, pretty good stuff. Also does a great job cooling my pc.

Updated review: I am going on 4 years now with this coolant in my custom loop. It looks and works amazing still!!!! There is nothing in the lines visibly, no gunk, and ive only had to top it off once or twice with very little fluid.

Excellent coolant! I have been using this coolant for a few months now in the build in the pictures. I recently drained my system to swap out the GPUs and there was absolutely no residue or anything in the blocks. This stuff didn't even stain the tubing. Everything cleaned off perfectly, I was actually amazed. If you would like to add some color to your coolant, it can be risky, but I feel that you will be safe with this outstanding option!

So far, so good. I bought two Thermaltake Pacific RL-240 kits for my build. They both came with Thermaltake coolant, but I wanted a coolant that was UV reactive. This stuff looks super cool at night lit by a string of UV lights in the case. I bought red and blue and they both look good. The red is a little more opaque than the blue, but clearer than the Thermaltake red. They are 700ml, so I needed 1.5 bottles of each for my build. I'm guessing builds with smaller rads and or less pipe one bottle would do the trick. All of my runs required the longer 1 meter tubes because my case is so big.

I've been using this coolant for over 5 years now and its never let me down. The longest I've had it in a loop was over 3.5 years. After that I noticed a few degrees of a temp rise so I decided to finally change it out. Still this coolant works great, looks great if you want to use UV lighting, and will last well over 3 years!! If you want a great, dependable, long lasting coolant than this is the product for you.

Cool looking liquid with good UV lights. It really popped after I upgraded my lights. My first lights o got where pretty cheep but still did cool effect. I had no issues with this liquid leaving any residue after cleaning my loop out either. I kept liquid in look just over 6 months. I really like it. I’d use it again.

I have a pair of Puget Systems PCs with Koolance liquid cooling systems on board that cool the CPUs and the graphics cards. One of the elbow fittings on the bottom of the graphics card manifold sprung a leak and in the process of swapping the elbow for a new one, I decided to refresh the original coolant (also LIQ-702BU-B). Thermodynamically, the stuff works fine. It keeps the systems cool and all that. But I've docked it one star for the staining of the interior of the fittings and for the cloudiness in the plastic of my formerly transparent coolant lines. This may be inherent in all coolant systems that use this type of coolant versus pure water, but one would think that they would have come up with a solution to this visual issue. The reason it matters to me is that I have a Lexan window on the side of my PC ... installed so that I could see if there ever was a leak ... and thus I see the cloudy lines ... and good thing I had the clear window or else I would not have detected the leak before it caused major shorting issues in the affected PC. So, in conclusion, the stuff works, the color is cool, but your lines will not stay clear ... the plastic will stain blue. Which may be OK with you. But again, this staining may be universal in the liquid-cooled PC world. I welcome comments on this. Thanks.

Ran this and my water pump quieted down 50%. Very easy to get rid of bubbles/suds compared to pure distilled water. I don't think I'll go back to running pure distilled ever again.