Pool pump/filter recommend please

[poolmikecalif]

Could you use something like item 34-215 on this page:

http://www.recreonics.com/fyi/wall_fittings.htm

Also, the 3-way Jandy valves do have the ability to position such that both lines are on.

Probably can't use that. It would have to fit a vinyl lined pool in a retro-fit application. That looks like it will only fit a new installation since its a solvent welded application.

The question on the Jandy is not that it would open both ports, but would it open both ports fully and create no significant restriction. Two ball valves would create essentially no restriction, but its two parts and the valves are not as reliable from what I've read.

[mas985]

I have used a Jandy 3-way to fully open all three ports at the same time so it basically looks like a tee. The opening for each port is about the size of the pipe so restriction should be low.

The valve can be set up to rotate the off position through the middle port or away from the middle port. The later allows you to rotate the off position to where there is no port (opposite the middle port) thus allowing for all three ports to be open at the same time.