Plumbing Question on when to reduce

[pochaxoo]

I am plumbing my return lines from a basement filtration system. I have 1” outlets on my pump(s) and the nozzle into the tank is 3/4 “. I am pumping up about 8-10 feet to the nozzles into the tank. My question is when should I reduce down to 3/4”? At the pump outlet or closer to the tank nozzles? I am assuming reducing the size of the pipe all the way up will decrease the head pressure but wanted some recommendations.

 

[blaxsun]

Probably closer to the pump.

 

[LightingBug]

Not an expert by any menas but I did watch a video on BRS TV where Robert Farnsworth said to go as long as you can with the larger pipe and reduce when you have to.

YMMV.

 

[Hal3134]

Reduce as late as possible to minimize head resistance.

 

[blaxsun]

Reduce as late as possible to minimize head resistance.

This would also depend on the pump being used - would it not?

 

[PapaFishRocks]

This would also depend on the pump being used - would it not?

Sorta/kinda. The actual resistance doesn’t change, but some pumps can handle it better than others.

 

[KStatefan]

Reduce as late as possible to minimize head resistance.

This.

You did not say what you are wanting for flow but the higher your flow is the greater this will make a difference.