Thanks Sean

I beleive my boost pump is 3/4 hp, label's a little weathered but I think it says 3/4. Main pump is 1hp and I have a Raypak heater and a 300# sand filter. Pool is 20x40,2 skimmers,2 returns, 1 main drain, 1 1/2" plumbing.

I run the cleaner about 90mins per day when I'm home, I work 7 on, 7 off. When I'm away it get run , maybe every other day if my better half remembers to switch it on or if she wants to swim. Right now the main pump is on a timer and runs 8 hours at night plus 4 hours durring the day. Seemed to work fine this way last year and am planning to continue this schedule this year.

If at all possible I'd like not to have to relocate the boost pump Tee, I was just concerned about the statement that says that the manifold/cell must be the last item in the return line. Right now the last item would be the 1" Tee to the boost pump, preceeded by the manifold which is preceeded by the heater.

I can't see how the boost pump would rob flow from the cell if it's location is after (downstream) the manifold. I was also a little concerned about the possible effect of the SWG on the boost pump and its components, ie: seals and brass ball valve.

If I can figure out how to post a picture I will.