Someone local is selling these rubber interlocking flooring mats for $2.00 a mat. I found what appears to be the same item on Amazon and it says indoor and outdoor use. Could these be used on the pool floor to cushion the liner? I don't want a moldy mess under there.
https://www.amazon.com/gp/product/B001KP018K/ref=ask_ql_qh_dp_hza
https://www.amazon.com/gp/product/B001KP018K/ref=ask_ql_qh_dp_hza