What size pipes for skimmers and returns?

GrandLSU

Active member
May 14, 2020
35
Baton Rouge, LA
Should skimmers and returns be plumbed with 1.5", 2", or 2.5" pipe, or something else? I will have two skimmers and 5 returns. Pump is a 3 HP Pentair VSF pump, model 011056. The pipes for my pool build were just delivered, and I'm seeing a combination of 1.5" pipes, 2" pipes, and 2.5" pipes.
 
Returns are minimum 1.5"
Suction can be 1.5" but best if 2" or 2.5" - sometimes even 3" if you trying to flow a big water feature.
Your plumbing between equipment on the pad is usually 2"
 
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