I purchased a 14X42 ultra frame pool this year. My yard is level the previous owners had a pool set up in the same area im gonna use. Now I know I should put pavers underneath the legs for support but my problem is I cant dig down to make them level with the ground cause when they removed the pool they filled the hole with tons of tiny rocks. I was thinking about instead of the pavers to use the recycled rubber tiles from lowes or home depot for the leg support. Just want some opinions if u think they will be strong enough to withstand the weight of the pool for the summer.