I have a 50 year old in ground pool, fiberglass walls, concrete floor. The original coping was cracked and some of the concrete with it. At the time I ought the house (20 years ago), I cut off the existing coping and concrete and tiled to the top. Now I want to pour a new coping and tile underneath. Is there a pvc coping available that is not for liners? My old coping had a slot that sat on top of the wall and the concrete was poured into it. I’m think I may have to build my own removable pvc form or something similar. Thanks for any ideas.