Let's say I've decided on 2.5" suction and 2" returns for my (please, please) soon-to-be pool. Rather than just telling the builder to shut up and do it my way, I'd like to understand exactly what I'm asking for. Besides a bigger stock of 2.5" pipe, what changes to my builder's normal stock of parts and supplies will there be from the usual 1.5"-and-2" install?
- 2" to 1.5" reducers for the returns[/*:m:2funbwdx]
- 2.5" to 2" reducers for the skimmers & main drains[/*:m:2funbwdx]
- Large size valves (2" inside, 2.5" outside)[/*:m:2funbwdx]
- 2.5" couplings[/*:m:2funbwdx]
- Large size tees (?)[/*:m:2funbwdx]
What else? Are there any places where they'd have to convert all the way from 2.5" down to 1.5", and can they just use reducers in series for that or is there a special 2.5" to 1.5" part? Would building the manifold at the equipment pad be vastly different other than the bigger valves?
Also, will mandating separate runs to the pad for the returns (4 total) cause a problem with too many pipes in the trench, or anything like that? Does the trench have to be wide enough for all the lines to lie side-to-side, or can they be stacked?