I am in the process of replumbing my pool and had a question as to the size of the return pipes.
Basically what was there before that didn't work. When the system first came on a tiny bit of water would come out of all of the returns but then the water would only flow out of the deep end:
1. From the heater there was a 2" pipe which ran to the first return (in the deep end under the diving board) connected to a T that sent water to the pool through a 1' pipe and sent water to the other returns through a 1 1/2" pipe.
2. 1 1/2" pipe was connected to a T that sent water to the pool (in the middle of the pool) through a 1" pipe to the pool and to the last return through a 1" pipe.
3. The last return in the shallow end of the pool was a 1" pipe connected to a 90 degree elbow which went to the pool.
I have decided to only use the deep end and shallow end returns, because the middle one goes right under my slide and I didn't want to cut the deck there. Also I have bought the following items and plan to use them. http://www.thecirculator.com/index.html (I would also appreciate any comments on these items as well, whether you have used them or not.)
So my dilemma is how to achieve maximum pressure at both returns. Logic tells me that if I use 2β to the first return and then split it with a T and reducers to 1β to the pool and 1β to the other return, then I should have equal distribution. If this is true then what would be the normal setup for 3 returns?
So my main question is what size pipe to use for the return lines?
If nothing else, this project has taught me that experience is much more valuable than logic, please help.