Where to place drain port?

[shtone]

Hi all,

 

I'm looking for a good spot to place a drain port in this 750D build.  The rads are alphacool ST30s and have just two ports (on the side indicated by yellow).  I'm trying to find a location that would at least be close to the lowest point in the loop, but it's a little tough with this port configuration.  One of my thoughts was to place a Y/T at the top left and just turn the case over to drain.

 

Please take a look at my loop and let me know if you have any ideas.  I'm open to most fitting types i.e. Y/T/Valves/Disconnect/etc.

 

Thanks guys

 

[FatalityDiablo]

right after the pump would be my guess edit: assuming the pump is fed directly by the reservoir - the last bit in the radiator will need to be sucked out by yourself may be

[W-L]

-SNIP-

Welcome the to Forums!

 

Since you have a rad on the bottom there isn't a way to fully drain every last drop but I would place it between the reservoir/pump and the bottom rad to drain the majority of the fluid.

[Speakerator]

At the highest point of your loop...  :rolleyes:

 

Right behind the pump sounds fine, though I don't know if you should drain the system using your pump. But it probably should be behind the reservoir and as low as possible (gravity 'n stuff...).

[brandishwar]

The ideal best place to have it would be on the bottom radiator. In the two loops I built into the 750D, I used a Koolance 4-way block and male-to-male rotary fittings to attach the valve to the block and the block to the radiator.

[DieHörnær]

Quite like you idea to put it at the top rad with a multiport adaptor fitting, valve one side loop to gpu out the bottom. Only problem would maybe be if the fluid wouldn't drain out of the reservoir though the pump [anyone]? So just tip and empty, making it the lowest point, neat! Otherwise I think your res/pump combo would have another port which you could attach a valve to.

[shtone]

Quite like you idea to put it at the top rad with a multiport adaptor fitting, valve one side loop to gpu out the bottom. Only problem would maybe be if the fluid wouldn't drain out of the reservoir though the pump [anyone]? So just tip and empty, making it the lowest point, neat! Otherwise I think your res/pump combo would have another port which you could attach a valve to.

I believe the fluid will drain through an idle pump, and yes my pump does have three ports, one intended as an auxiliary drain port - I hadn't considered this, so thank you for pointing that out.

 

The general consesus seems to be to place the drain after the pump and before the bottom rad.  However, I still like the idea of placing the drain on the top rad and tipping the case, thereby creating a single low point in the loop for the sake of draining the bottom rad, so I may do that.  One problem I can forsee with this design is not being able to open the res cap easily for air displacement.

 

Edit: after thinking on it for a bit, I've decided it's really not that important for the bottom rad to drain entirely.  Easiest choice may be to just fit a valve to the aux port on the pump.

 

Thank you all for your input.

[smg4life01]

I've ordered the valve so i can drain my system more easier i'm gonna use a t fitting with the valve on the the end to drain from the pump and then try and drain the rest from moving the case around.