can you put a liner in a fiberglass pool
Considerations. Before putting a swimming pool vinyl liner over a concrete or fiberglass pool's basin surfaces, ensure nothing will rip the new liner. Also, old concrete swimming pool surfaces can be abrasive and wear away at a vinyl liner. Verify that concrete or fiberglass pool surfaces are smooth before putting a vinyl liner over them. A custom-made vinyl liner to accommodate a concrete or fiberglass swimming pool will cost at least a few thousand dollars.