Reservoir inlet design

[SvdSinner]

I'm replacing my pump and reservoir in my watercooling system because the pump was leaking and I never liked my old reservoir.

As I redesign it, what is better: Should the inlet flow into the reservoir above or below the water line? Does it matter?

 

[SvdSinner]

For great justice! Somebody here has to know this! Should the water return below the reservoir waterline, or should it return above the water line, and fall through the air part of the reservoir into the water?

 

[styleboy]

Well, I would recommend that the outlet from the res is as low into the water level as possible, that way the pump would have less chance to suck any air into the system.

Also, I wouldn't recommend having the water level in your res that low, where the inlet water would have to 'fall' through the air, possibly creating air bubbles in the system.. Fill that bad boy up to the top, and that way it doesnt matter what goes where.

 

[madmat]

Putting the inlet for the res above the waterline can cause air to be sucked back into the loop not to mention the fact that the water noise can get very annoying.

 

[sonnybobiche]

Putting it below the waterline will increase backpressure working against your pump.

 

[madmat]

Putting it below the waterline will increase backpressure working against your pump.

In a closed loop the increase in backpressure will be minimal at best since the pressure exerted against flow is made up for by the suction generated by the pump. It would only be a detriment in an open loop system.