From what I'm gathering, you are thinking the sand in your pool is from a hole in the liner - ie - the vac is sucking sand through the hole.
Impossible, due to several reasons:
1. If you had a pin prick hole you would see a loss of water, but sand could never get back up through the hole since it would be too small.
2. If you have a hole big enough for sand to get through, your pool would be dropping an inch or more a day.
3. Sand would NEVER go up through a hole since the water pressure forcing down on it is too great.
4. Even if teh vac were to suck it through, it would deposit in your filter, never to return into your pool.
If sand is showing up in your pool continually, it is a problem inside the filter, here are some possibilities:
1. Broken Lateral
2. Bad spider gasket
3. Bad seal on the standpipe to multi port valve connection.
4. too much sand in your filter.
Bookmarks