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Drain port directly out of pump?

post #1 of 6
Thread Starter 
He guys,

Can someone chime in and let me know if it should be ok to run a drain port directly out of a pump top?

I have aquacomputer tops on my D5's and want to use a spare inlet OR outlet port on each pump to run a tube off with a tap connection and end cap.

I understand the common practice is to place it just after the pump but it is more convenient on this build to have it actually coming from the pump.

Thoughts?
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post #2 of 6
When they mean after the pump... I am pretty sure them mean put it in one of the out of the pump. I have been running my out of the secondary out on my Alphacool pump for a few years now without a problem.
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post #3 of 6
Any place is good which allows the water to flow out, which is the lowest point in the loop, or as close to it as you can get. Before or after the pump does not matter. In fact I never heard of a "common practice" of placing the drain port just after the pump.
post #4 of 6
Thread Starter 
I was more referring to if there would be any kind of ill effect using the second outlet for instance in regards to pump effectiveness.

I totally understand the principals of placing it at the lowest point.
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post #5 of 6
There should not be any ill effect. You don't run the pump while draining and don't open the drain port while running the pump. So it is really just a matter of what works and looks better.
post #6 of 6
There is a slight chance that it will make getting air out of the pump a bit more difficult.
This is why on the newer Bitspower pump tops they include plugs for unused ports that actually take up the inner volume rather than just being normal flat stop plugs. so that air bubbles are not trapped.
Opening the tap and draining a little fluid do that the drain line is completely flooded should negate that but it depends a lot on which port is used and it's orientation as to how likely it is to happen.
Edited by Jakusonfire - 2/2/16 at 10:59pm
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