Ruben nassau NY

So I live in Nassau NY and l been retired since 2009 and own a small pool with a spill over spa. I believe it’s a triac made in Canada . I have a loop lock cover that covers the entire pool and spa . But every year I ha e to place plywood under the cover to prevent the water from getting into the spa. I have been searching for A company that sells the hard cover for the spillover. I know the company in Canada carries them but won’t ship to me . Does anyone know a. Impact in the us or elsewhere? Thanks and stay safe

This is the spillover I currently have, the brand is Triac and it’s made in Canada. So they sell a hard cover for it. Made by Latham pool products