hi guys. just wondering if anyone used other pipes like those heat-fused type pipes like polypropylene (PPR). the reason i'm asking is because we're building a pool but the pool room is in the basement of a large hi-end home. the complication lies with the fact that the structure of the house and the pool is independent of each other so some movement is expected. if i use the common pvc pipe i'm afraid that it might not be flexible and durable enough to hold up to movements. because the pipes will run between the walls of the basement and the pool it's critical that we don't develop a leak there..... else that will mean a huge amount of work that will cost quite a bit, something i would rather not happen in the first place. flexible piping came to mind but after some research it's vulnerable to termites which is a huge issue for us here.