Hello, I recently replaced my stair steps that I used to have for entry into my above ground pool, with a cheap plastic deck ladder. It came with an optional small rectangular vinyl mat, but I read that people recommended that mat as extra protection for the pool liner, so that the ladder doesn't damage the pool liner.
I put that rectangular piece of vinyl under the ladder, but it sometimes comes loose. Water currents created by swimmers is enough to do it, and also my Wanda the Whale automatic vacuum will start dragging it around the pool with it, as its suction is enough to make the mat stick to it.
It's possible that maybe this is happening, because I didn't follow manufacture instructions, which said to fill the ladder with sand. I read in the reviews that some people just fill it with pool water, and that appealed to me, in case I ever get sand leakage.
By chance, do people here think that sand would be dense and heavy enough to provide enough weight on that mat to keep it where it is? To me, it's not enough that the sand be heavy - it has to be denser than water (which I'm sure it is). Put another way, the weight of the sand minus the weight of the water displaced would become the net weight pressing down on the vinyl (so less than the weight of the sand), and I'm just wondering if it would be enough to hold it there.