How would you suggest affixing the pond liner to the inside of the sides once it’s high enough? Use the sealant as glue? Staples? Just trying to wrap my head around using a flexible liner without creating pockets to trap water or places for water to get behind it...I know lots of people do it...
I inherited a rescued male EBT about 4 years ago. He was approximately 8 or 9 years old at the time. About 3 1/2 years ago I built a plywood enclosure for him (22"x84") and painted the inside with what I thought was plenty of coats of semi-gloss paint. Clearly did not work to waterproof it...