We had some work done on our sand filter(had an o-ring replaced). Now there is
piles of filter sand near the returns that was blowen there.
1. Is it OK to vacuum this sand with our manual pool vacuum?
2. When we now shut the pump off and turn it back on sand blows out the returns on start up,
it never did this before the work was done. Will this correct itself after a few start ups?
Thanks in advance!!!!