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Planning a loop drain in a Core P5 - three questions...

post #1 of 4
Thread Starter 
Brand new water cool builder planning my first loop. I have purchased about half the parts so far. I have a question about placement of a drain for the loop. I have a Thermaltake Core P5 case – so it is a big case. I plan to mount the (probably a 420) radiator vertically in the normal spot in the case on the right side. I have a XSPC D5 Photon 270 Reservoir/Pump Combo that I would like to center vertically just left of the radiator. MB in the normal upper left position. Because the rez/pump is centered vertically on midline it will be higher than the bottom of the radiator. Would putting a drain in the bottom of the radiator be the best bet? Would that drain the whole system?

The XSPC D5 Photon 270 Reservoir/Pump Combo has three ports at the pump head. From my understanding two intakes and one output (not sure the need for two intakes...). Could one of those intakes be plumbed as a drain if I have a tube vertically to the bottom of the case?

Thanks for the help – everything has gone smooth so far – however the drain issue is holding me up.
post #2 of 4
Putting a drain in the bottom of the radiator would only drain what was in the radiator and more or less anything else higher in the loop than the fittings on the radiator. If all the fittings are on the bottom of the radiator, that would be best for draining. Usually there is some need to move the case around to get the water to move a bit either way.

Usually, if both intakes are used, one is for a reservoir, and the other is for a loop return line. It is not necessary to use both intakes, however. So, yes you can try using the other intake as a drain. The only problem with this is that you probably wouldn't be able to drain anything while you are running the loop because of the suction created by the pump (this is just an assumption). You can try to drain the loop when the pumps aren't running but the fluid may have to back-drive the pump causing a slow drain.
Edited by mtrapuzz - 8/4/16 at 2:03pm
post #3 of 4
If the radiator is oriented so the ports are at the bottom then yes, putting the drain at the bottom of the res would be your best bet. The second return port on the Photon is useful if it is indeed the lowest point for draining, or for a plug-style temperature probe, or if you run a loop that splits up at some point or has a bypass for some reason. Most people just end up sticking a temperature plug in it if you have a simple loop and no other temp probe already.

I would just run a T fitting from the bottom of the rad and have your drain there.
 
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My Rig
(19 photos)
 
CPUMotherboardGraphicsGraphics
i7 5820K MSI X99-A Tomahawk 1080 ti Founders Edition with EK block and back... 1080 ti MSI Seahawk EK X 
RAMHard DriveHard DriveHard Drive
GSkill RipJaws 3000 32GB Samsung 120GB SSD WD Black 2TB Raid 0 WD Green 4TB 
Hard DriveHard DriveOptical DriveCooling
Hitachi 5TB Samsung 500GB SSD CD/DVD/BluRay Custom water cooling 
OSMonitorMonitorMonitor
Windows 10 Acer Predator x34 AOC i2769Vm Gateway KX2153 
MonitorKeyboardPowerCase
QNIX QX2710LED Corsair R95 RGB EVGA Supernova G2 1300 Watt Caselabs SMA8 
MouseAudio
Logitech G600 Mixed setup: Pioneer receiver, Bic America fron... 
  hide details  
Reply
post #4 of 4
Thread Starter 
I have been looking at radiators the last few days. It looks like the Alphacool NexXxos UT60 has six ports on the top and one on the bottom. If i mount it with the one port on the bottom could that be fitted with drain paraphernalia? I am using hard line and i am not sure if i have tubing long enough to make it from the upper left (motherboard) down to the lower right (bottom of radiator, with both ports down). If I used the Alphacool and had the six fittings on top connected to the loop and the one port on the bottom (which would be the lowest point in the loop) fitted as a drain - would that work???
Thanks!
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