1" pvc and need help with my sump

[Zach5187]

Building my 4x6 ft tank. Each corner will have a 1" standpipe and in the middle a single return with a t at the top with a spray bar more or less. The tank is 360 gallon being 24 tall water level will be kept at 20" I need to turn 1800 gph from what I have read. So you see this working any recommendations on a budget friendly but good quality sumo that will work with this setup thanks in advance

 

[duanes]

If you have 2 one inch PVC stand pipes, and if you combine them into 1 pipe with a Tee to the sump, I would combine into a larger diameter pipe, preferably a 2".

 

[Zach5187]

I was going to do each 1" standpipe with with both having own pipe into sump, to be more clear