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Does anyone currently manufacture a Dual-DDC pump top?

post #1 of 9
Thread Starter 
I've been looking to add some redundancy to my loop by adding a second DDC-1T PWM pump, and perhaps a bit more performance from the increased pressure one would get from two pumps in serial. I have found for sale and XSPC dual and one from Aquacomputer but both are discontinued, likely due to problems since i found a lot of threads talking about how the XSPC acrylic fails if the coolant gets too warm and the aquacomputer has an issue with the top inlet threads.

I did find a dual pump top from Watercool.de that seems to be current, and not EOL. But that seems to be about it. Im also considering just hooking together the two pumps with tops i currently have but i'd much rather have a nice two pump top solution.
post #2 of 9
Try this https://www.ekwb.com/shop/ek-xtop-dual-ddc-3-2-pwm-incl-2x-pump
post #3 of 9
Quote:
Originally Posted by Andrew LB View Post

I did find a dual pump top from Watercool.de that seems to be current, and not EOL. But that seems to be about it.

The top from aquacomputer isn't discontinued tho.
https://shop.aquacomputer.de/product_info.php?language=en&products_id=2359

The swiftech dual ddc top is still available from FrozenCPU.
http://www.frozencpu.com/products/14964/ex-pmp-175/Swiftech_Dual_Small_Form_Factor_Pump_Housing_-_Black_MCP35X2-BK.html

There is this allegedly full copper one from "ICE" on aliexpress.
https://www.aliexpress.com/item/ICE-Full-Metal-Serial-Connect-Dual-DDC-Pump-Top/32825342445.html

And ofc the watercool one.
http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/31101
post #4 of 9
Thread Starter 
I can't seem to find anyone in the US selling the Aquacomputer dual ddc top unfortunately.The one place that used to have it is aquatuning.us but they have it listed as "not currently available". Due to needing one with the inlet on the top and outlet on the side, i think the only option that isn't some unknown product from aliexpress would be the heatkiller dual ddc top. And unfortunately being sold by Performance-PCs whose shipping costs are horrible.
post #5 of 9
Quote:
Originally Posted by Andrew LB View Post

I can't seem to find anyone in the US selling the Aquacomputer dual ddc top unfortunately.The one place that used to have it is aquatuning.us but they have it listed as "not currently available". Due to needing one with the inlet on the top and outlet on the side, i think the only option that isn't some unknown product from aliexpress would be the heatkiller dual ddc top. And unfortunately being sold by Performance-PCs whose shipping costs are horrible.

Have you checked to see if aquacomputer will ship to you directly, maybe the chipping costs aren't too bad?
post #6 of 9
Thread Starter 
I ended up going with my second choice, the Heatkilller Dual DDC top from performance-pcs. I found that my initial shipping price was so crazy because i also had in the cart a bottle of Mayhems XT-1 Nuke, but upon removing that so it was just the pump top, the shipping was much more acceptable.

This will be my first product from Watercool, but if their quality is anything like Aquacomputer, im sure i'll be quite happy with the purchase. .I'm always happy to pay a bit more for German quality and workmanship.
post #7 of 9
Quote:
Originally Posted by Andrew LB View Post

I ended up going with my second choice, the Heatkilller Dual DDC top from performance-pcs. I found that my initial shipping price was so crazy because i also had in the cart a bottle of Mayhems XT-1 Nuke, but upon removing that so it was just the pump top, the shipping was much more acceptable.

This will be my first product from Watercool, but if their quality is anything like Aquacomputer, im sure i'll be quite happy with the purchase. .I'm always happy to pay a bit more for German quality and workmanship.

Watercool has some of the highest quality stuff on the market, but its still a full acrylic top, so be careful with over-tightening and keep away from alcohol.
post #8 of 9
Thread Starter 
Quote:
Originally Posted by Gilles3000 View Post

Watercool has some of the highest quality stuff on the market, but its still a full acrylic top, so be careful with over-tightening and keep away from alcohol.

Yeah, that's one of the reasons why i had preferred the aquacomputer top. But that one had some funky half-threaded top inlet which also concerned me. lol. It's a shame more people don't use dual pumps. If they did, i'm sure you would see designs that don't have these shortcomings. Ideally i'd like to see a full POM top with multiple inlets and outlets with full threaded connections. Oh well, maybe one day.

Its going to be interesting to see what the additional head pressure and slight increase in flow rate will do for cooling. Right now my single DDC-1T PWM Special Edition (10w) which is rated at 420 l/h has a flow rate of 0.93gpm (211 l/h or 3.5 l/m). Its having to push through a XSPC ex360 and ex280 radiator, XSPC Raystorm CPU block, and Aquacomputer Kryographics GTX 780ti. Also an Aquacomputer High Flow sensor, and assorted fittings. My 4670k @ 4.4ghz and 780ti @ 1.3ghz are currently running at 45'c and 40'c respectively while playing Ark Survival Evolved which is about 7'c air/water delta according to my Aquaero 5. When idle at full clock speeds (no speedstep), its about 3'c. Redundancy is the main goal here though. But some better flow will be welcome.
post #9 of 9
Thread Starter 
Well... yesterday i had a delivery.



Along with the Watercool Heatkiller Dual DDC top I received a bottle of Mayhems XT-1 Nuke (clear) which ill add some Mayhems UV Blue dye, and a Barrow DDC heatsink (so the pumps match). If i have time tomorrow i'll be draining my loop, running some citric acid or vinegar through it, followed by hooking it up to the hot water faucet for a super thorough flush, then a distilled rinse. I will likely do some preliminary leak tests on the pump top on my kitchen counter powered off a bench power supply. Once i'm sure the pump top is leak-free, ill install it and leak test for a couple hours before powering on my PC. From my limited watercooling experience, if its not leaking in the first hour or two, it should be fine especially since i'm not re-tubing the whole PC because the current tubes are less than two months old.


/edit

Im also planning on cutting off the 4 pin molex connectors on the pumps and soldering on SATA power connectors. I'm doing this because the ground pin on one pump tends to get pushed back into the plug, and the connector on the other pump just seems low quality.
Edited by Andrew LB - 10/4/17 at 10:57pm
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