pool bottom

[1bigdeerhunter]

Hello, im installing a 18x33 this week and doing an expandable liner, my question is when i get my deep end dug out should i use sand , or sand and foam ?? what would be the best, im just worried about the sand not staying on the slopes. thanks for any advice

[aylad]

I'm sure that one of the guys with pool installation experience will be along shortly, but I can tell you from experience that if you only have sand for the bottom and you have a leak in the shallow end, the water will wash all the sand down to the lowest point, causing trenches under your liner. My pool builder used a combination of sand and concrete but I really don't recommend that either because we have small rocks that occasionally appear.

I think most of the pool builders in this area use foam. We have a very high water table (Louisiana).

Janet