I decided to redesign all the plumping on my manifold. The valves are 23 years old (Jandy grey) and previous owner didn't maintain them. Also lots of extraneous street elbows. So I'm going to have lots of questions. Basic plan is to draw it all out, think about it over the summer, get the parts, and then do the work in the fall when it's cooler here.
#1. The old pipes are 1.5" PVC, should I move up to 2"? The lines from the pool are about 50 feet, I don't plan on doing anything with those. There are four pipes coming into the suction side, one of which is the spa drain (normally closed). So it would be reducer (expansion?) couplings to/from the in-ground lines, and 2" above-ground.
Question #2. What length should I allow for straight pipe between the 3-way valves, check valves, and unions? I'm thinking 5" minimum, mainly for repairs down the line, but space is very tight. If it wasn't for future repairs, I would use zero-length exposed, with just enough for the sockets.
#1. The old pipes are 1.5" PVC, should I move up to 2"? The lines from the pool are about 50 feet, I don't plan on doing anything with those. There are four pipes coming into the suction side, one of which is the spa drain (normally closed). So it would be reducer (expansion?) couplings to/from the in-ground lines, and 2" above-ground.
Question #2. What length should I allow for straight pipe between the 3-way valves, check valves, and unions? I'm thinking 5" minimum, mainly for repairs down the line, but space is very tight. If it wasn't for future repairs, I would use zero-length exposed, with just enough for the sockets.