"V2" Koolance *Dual D-5* Bay Reservoir! (RP-452X2)

[jayhall0315]

We released the RP-401X2 (DDC) some time ago which follows this type of design. We won't be updating RP-402X2 (dual bay version) again because the single bay RP-401X2 appears much more popular.



We don't have any policy that disallows us from sponsorships, and we do assist with some builds. Unfortunately, as a small company, we can't afford to support most of the inquiries we receive. We don't want anyone to take it personally. There are a ton of great builds going on and we wish we could assist them all.

We realize the RP-452X2 has gone through quite a few revisions in a short amount of time-- more than we would like. The enthusiasm we received from the cooling community after the original launch accelerated our revision process. Most of our updates were rather minor so we're trying to avoid small, frequent updates in the future.



My real name is Tim, which I sign after all my posts. According to Oliver Laing, the inverted orientation is not recommended to avoid issues with air. If you burp the pump before running it, there shouldn't be any problem. We haven't encountered any difference in pump failure between our products with upright pumps versus upside-down, even after tens of thousands of pumps. For performance, our RP-401X2 was designed for two inverted DDC pumps, which Martin listed as his "highest performing Koolance top tested to date".

I understand having air bubbles going through a pump until bled is extremely annoying, but individual systems vary in bleeding requirements and installation technique. There are alternative ways to avoid air going through a component if it's proving more difficult, including placing a fill port elsewhere in the system. It's no comfort to those experiencing problems, but the vast majority of RP-452X2 users are getting their Rev.1.0-1.3 units to bleed.

Tim

Thanks for the reply Tim. With all due respect to Martinm, that was a personal review and not an engineering quality control test. The inverted operation should be okay but at the cost of increased chance of cavitation. And you are right, you can get the 452X2 bled, but it takes a long time and is a right royal pain in the butt (even more so, when you try to use two separate loops). I like your comments about avoiding small frequent updates in the future. For your next Version 2.0, might I kindly suggest, a true quality control testing over several months before its release, in real world cases and under multiple real world usage scenarios. This is going to be the best shot at not possibly turning off future users who would buy even more Koolance gear. While a knowledgeable university educated engineer is not a miracle solution to all quality control or design problems, such an individual can often correct or catch some of the minor mistakes I see which have afflicted the 452X2 revisions 1.0 to 1.3. I think this product has the potential to be great but I think it needs to be done right , before any future releases.