Ok so I've finally decided to bite the bullet and replace my patio around my pool with pavers. Old paver blocks have been removed and I'm ready for the new pavers. The big question now is should I re plumb the underground piping. The pool is inherited and is 20 years old. Liner was replaced last year. I have 2 returns on shallow end and 2 skimmers at deep end. Piping is 1.5" flex pvc, which turns into black poly which then turns into rigid pvc by pad. Currently no leaks that I'm aware of but 1 of skimmers has been clogged since I've had the pool (1.5 years). Big question is should plumbing be replaced. Second question is if so, is this something I can do.
I have numerous questions about replacing lines if I were to do the work. They include
1. Will skimmer boxes need to be replaced or can I keep them and just replumb.
2. How would you do main drain plumbing since Im not digging under pool. Would I just connect to the flex pipe near skimmers and replumb from there.
3. How deep to go. I'm in North east so I figure at least 18 ". I only ask because a good portion which I have currently dug up is only 4 inches deep (black poly pipe was in paver sand).
4. Should I increase to 2" pipe and should I make separate runs for each return and each skimmer, or can they be tied together.
5. Any secret for backfilling. As I don't want to crack piping since I will need to tamp dirt in order to have a solid surface for pavers.
I think this is a good starting point let me know your thoughts