Pump return piping and "looping"

[mas985]

I don't think a continuous loop is necessary. You could simply use different size eyeballs on each return. Smaller ones closer to the pump and larger ones further away.

Also, if you ran separate pipe to each return from the pad, you could put ball valves inline and adjust the flow to each return.

Even if you did none of these things, the furthest return would only have slightly less flow than the others. When the pump is on low speed, the head loss is only 25% of that on high speed so pressure loss is very low and should equalize fairly easily between the returns.

[eljefe281]

Thank you.

That's very helpful, especially the part about different sized eyeballs.