I have a sand filter with a multiport attached to my pool plumbing using hard PVC. The pool was built by previous owners and seems to have had a few repairs over the years. The plumbing as it is does not really permit removal of the multiport to do any kind of cleaning of the sand or inspection of the laterals etc.
Because of this I started wondering if it would be possible to replace some of the hard pipe with flexible pipe like you see on some AGP's. But - things work well as they are - I don't want to solve one problem and cause another. Is there a disadvantage to the flexible pipe? Is there a better way to make this more serviceable?