Can you please help me understand this better?simicrintz said:2 inch plumbing is good, 2 1/2" is better! Use the same size coming and going, and loop the return system to balance the flow on the returns. Use large diameter pipe (1 1/2") for the return penetrations in to the pool, and have them run them in 90 degrees to the pool wall, and install directional eyeballs to direct flow. Three returns is good, 4 is probably better!
1) you say use the same size coming and going, but then say use 1.5" for return penetrations to the pool. Seems to say two different things.
2) when you say loop the systems, could you please describe what you mean?
3) when you say 90 degrees to the pool wall, do you mean that some installers make the returns meet the pool walls at something other than a right angle?
4) how deep behind the pool wall should the return extend at a 90 degree before elbowing or changing angle
Thanks a lot - new to this stuff and just trying to understand better.