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fabafaba

Dual (DDC) pump and reservoir combo

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Posted · Original PosterOP

I want to add a second pump to my loop because my DDC struggles with it, I guess seven tight 90° bends and fittings and an even tighter 180° bend are a bit too restrictive.

The loop: 

Because I'm quite restricted with my available space, I'm looking for a way to put two DDCs in serial with a reservoir and within the footprint of a regular tube reservoir, under 220mm tall. I couldn't find any one-piece off the shelf solutions, and the only thing I could think off was stacking two Alphacool DDC pump tops with compact reservoirs.

1769966436_DualPumpResv5-black.png.e4b87d4dcd87536897b8112222f85453.png949084142_DualPumpResv5-clear.png.bada211572bcc401dc054a8665394fde.png

If you know of any other solutions to simplify this, I'd love to know!


PC: Screw day theme users, I guess ¯\_(ツ)_/¯

Benchmarks: 9889 Time Spy, 1762 XTU, 2888 CinebenchR20

CPU: i7 6850k @ 4.3GHz MoBo: MSI X99A SLI Plus RAM: 4×8GB HyperX Fury @ 2800MHz 14-16-16-35 GPU: GTX 1080ti FE @ 2076MHz Cooling: Dual 60x360mm rad, 30x360mm rad, Nickel Plexi EKWB blocks, Corsair ML120, Alphacool DDC+Eisbecher 150, Aquaero 5LT Case: Lian Li PC O-11 Dynamic PSU: Seasonic M12II Evo 850W + Custom DIY Cables Storage: 250GB 970Evo + 525GB Crucial MX300 + 2x 120GB Kingston A400 SSDs + 4x 2TB Seagate Ironwolf in RAID 5 Coming Soon: Currently waiting for more news on Threadripper 3 and its possible upgrade paths vs Cascade Lake X, I could really use some more cores.

Laptop: Acer Travelmate B117 (absolutely low power, but 12h battery life :D)

Phone: Oneplus 2 64GB

Peripherals:

Monitor: LG 34UC79G Keyboard: Corsair K63 Wireless Mouse: Logitech G603 Mousepad: HP Omen 300 Headphones: AKG K7XX  Other stuff: Novation Launchpad MK2, Aune T1 USB DAC/Amp, Definitive Audio MX1024 mixing board, cheap-ass XLR condenser mic

Cameras:

DSLR: Canon EOS 600D (Magic Lantern OS) Action Cam: GoPro Hero 3 Silver

Mountainbike:

Frame: Banshee Legend MKIII Fork: Marzocchi 380 C2R2 Titanium Rear shock: Rock Shox Vivid Air/Coil (switched depending on how I feel) Wheels: Spank Spike Race 33 Tires: Maxxis Minion DHR2/DHF Brakes: Magura MT5 Calipers with Shimano XT Levers Deraileur: Shimano Zee, Casette reduced to 6 Speed Crankset: Truvativ Descendant + 38T FSA Chainring Wheight: 16.4kg w/o pedals

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Could you put an additional pump in somewhere else in the loop, to help keep up the pressure, or does the pumps have to right next to each other?

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Posted · Original PosterOP
1 hour ago, MiniMike DK said:

Could you put an additional pump in somewhere else in the loop, to help keep up the pressure, or does the pumps have to right next to each other?

I'd love to put the second pump somewhere else, because then I'd only have to buy one new pump top. There is however no space I could think of without it dangling somewhere in the air. Take a look yourself, the link is in the first post. My current pump-res combo sits in a roughly 100x100x220mm space and I would prefer a dual pump top mounted vertically, but I couldn't find any that have an reservoir, apart from 5 1/4" bay units, but those are too large.


PC: Screw day theme users, I guess ¯\_(ツ)_/¯

Benchmarks: 9889 Time Spy, 1762 XTU, 2888 CinebenchR20

CPU: i7 6850k @ 4.3GHz MoBo: MSI X99A SLI Plus RAM: 4×8GB HyperX Fury @ 2800MHz 14-16-16-35 GPU: GTX 1080ti FE @ 2076MHz Cooling: Dual 60x360mm rad, 30x360mm rad, Nickel Plexi EKWB blocks, Corsair ML120, Alphacool DDC+Eisbecher 150, Aquaero 5LT Case: Lian Li PC O-11 Dynamic PSU: Seasonic M12II Evo 850W + Custom DIY Cables Storage: 250GB 970Evo + 525GB Crucial MX300 + 2x 120GB Kingston A400 SSDs + 4x 2TB Seagate Ironwolf in RAID 5 Coming Soon: Currently waiting for more news on Threadripper 3 and its possible upgrade paths vs Cascade Lake X, I could really use some more cores.

Laptop: Acer Travelmate B117 (absolutely low power, but 12h battery life :D)

Phone: Oneplus 2 64GB

Peripherals:

Monitor: LG 34UC79G Keyboard: Corsair K63 Wireless Mouse: Logitech G603 Mousepad: HP Omen 300 Headphones: AKG K7XX  Other stuff: Novation Launchpad MK2, Aune T1 USB DAC/Amp, Definitive Audio MX1024 mixing board, cheap-ass XLR condenser mic

Cameras:

DSLR: Canon EOS 600D (Magic Lantern OS) Action Cam: GoPro Hero 3 Silver

Mountainbike:

Frame: Banshee Legend MKIII Fork: Marzocchi 380 C2R2 Titanium Rear shock: Rock Shox Vivid Air/Coil (switched depending on how I feel) Wheels: Spank Spike Race 33 Tires: Maxxis Minion DHR2/DHF Brakes: Magura MT5 Calipers with Shimano XT Levers Deraileur: Shimano Zee, Casette reduced to 6 Speed Crankset: Truvativ Descendant + 38T FSA Chainring Wheight: 16.4kg w/o pedals

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4 minutes ago, fabafaba said:

 

1 CPU block and 1 GPU block and a couple of big rads right? Presumably the flowrate is the issue and there is no problem with head pressure. Why not consider upgrading to a D5 instead?

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Posted · Original PosterOP
1 minute ago, For Science! said:

1 CPU block and 1 GPU block and a couple of big rads right? Presumably the flowrate is the issue and there is no problem with head pressure. Why not consider upgrading to a D5 instead?

Yes, two blocks, three rads and a lot of 90s. I want a higher flowrate, but I think the problem is my loop being too restrictive, resluting in my low flowrate. I can roughly calculate it with the temperature delta before and after the blocks and the added power draw of the CPU and GPU, and it's somewhere between 20 and 25l/h. My Alphacool DDC310 can supposedly do 200l/h without any resistance, and only getting a little over 10% of that looks like a problem that can be solved with more pressure. Two DDCs have 4.4m of headpressure, which is about the same as a good D5. A new D5 pump res combo would cost quite a bit more than what I came up with, so I'm not quite sure about that.


PC: Screw day theme users, I guess ¯\_(ツ)_/¯

Benchmarks: 9889 Time Spy, 1762 XTU, 2888 CinebenchR20

CPU: i7 6850k @ 4.3GHz MoBo: MSI X99A SLI Plus RAM: 4×8GB HyperX Fury @ 2800MHz 14-16-16-35 GPU: GTX 1080ti FE @ 2076MHz Cooling: Dual 60x360mm rad, 30x360mm rad, Nickel Plexi EKWB blocks, Corsair ML120, Alphacool DDC+Eisbecher 150, Aquaero 5LT Case: Lian Li PC O-11 Dynamic PSU: Seasonic M12II Evo 850W + Custom DIY Cables Storage: 250GB 970Evo + 525GB Crucial MX300 + 2x 120GB Kingston A400 SSDs + 4x 2TB Seagate Ironwolf in RAID 5 Coming Soon: Currently waiting for more news on Threadripper 3 and its possible upgrade paths vs Cascade Lake X, I could really use some more cores.

Laptop: Acer Travelmate B117 (absolutely low power, but 12h battery life :D)

Phone: Oneplus 2 64GB

Peripherals:

Monitor: LG 34UC79G Keyboard: Corsair K63 Wireless Mouse: Logitech G603 Mousepad: HP Omen 300 Headphones: AKG K7XX  Other stuff: Novation Launchpad MK2, Aune T1 USB DAC/Amp, Definitive Audio MX1024 mixing board, cheap-ass XLR condenser mic

Cameras:

DSLR: Canon EOS 600D (Magic Lantern OS) Action Cam: GoPro Hero 3 Silver

Mountainbike:

Frame: Banshee Legend MKIII Fork: Marzocchi 380 C2R2 Titanium Rear shock: Rock Shox Vivid Air/Coil (switched depending on how I feel) Wheels: Spank Spike Race 33 Tires: Maxxis Minion DHR2/DHF Brakes: Magura MT5 Calipers with Shimano XT Levers Deraileur: Shimano Zee, Casette reduced to 6 Speed Crankset: Truvativ Descendant + 38T FSA Chainring Wheight: 16.4kg w/o pedals

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1 minute ago, fabafaba said:

 

I would personally go for the cleaner look of one pump, not to mention the reduction in noise from going to a D5 let alone compared to two DDCs in close proximity to each other. Up to you, but this may be a case scenario of "buy cheap, buy twice".

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