Wet Dry Filter Return Pump QUESTION?

[RodInCALIFORNIA]

PLEASE if you dont know the answer and are making a guess dont give a reply I dont want to burn up this new pump with bad information - thanks

I bought a return pump its new for a great price but it is 1300GPH and its to powerful for my wet dry filter I want to use it on. My question is: will it harm the pump to restrict the output flow and if it wont cause damage to the pump should I restrict the INPUT port on the pump or the OUTPUT?

Thanks !

 

[dundadundun]

restriction should not be an issue if done correctly on most if not all pumps. the only way i can see it being an issue is if the impeller were not secured nicely in a balanced centered position.

since you have to restrict the flow it's best to do it on the output. restricting the input can definitely cause issues.

 

[jones57742]

My question is: will it harm the pump to restrict the output flow and if it wont cause damage to the pump should I restrict the INPUT port on the pump or the OUTPUT?

RC:

You restrict the output and no damage will occur.

Restriction of the input may yield a crispy critter.

TR

 

[excuzzzeme]

OUTput restriction can be accomplished by using smaller diameter pipe and/or the use of a ball valve. I personally prefer the use of a ball valve as you can "dial in" the amount of flow you want.

 

[CWO4GUNNER]

I would use a Y valve that can regulate the GPH between the return circuit and bleeds excess GPH recalculating back to the sump tank.

 

[RDTigger]

OUTput restriction can be accomplished by using smaller diameter pipe and/or the use of a ball valve. I personally prefer the use of a ball valve as you can "dial in" the amount of flow you want.

I have a 900gph sub on my wet/dry with a ball valve to dial in the flow on a tidepool sump rated at 600gph... Has been running smoothly for 3 months now.

I would use a Y valve that can regulate the GPH between the return circuit and bleeds excess GPH recalculating back to the sump tank.

Adding a pressure gauge is a cool idea.

 

[nc0gnet0]

Restricting the output should be no different as far as the pump sees it as adding head height.....same net effect so, unless extreme, should be no issues......

 

[RodInCALIFORNIA]

went to home depot and got a 1inch ball valve works great ! Thanks

 

[BadOleRoss]

I would use a Y valve that can regulate the GPH between the return circuit and bleeds excess GPH recalculating back to the sump tank.

This is the way I have always done it as well.