I just got the new filter grids assembly I ordered, since basically all of the old grids were torn somewhere, and with cracks on the manifold...
Now the problem I have is how much DE should I add when installing the new grids assembly? I know that it says to add 6 lbs of DE in the filter manual, but I also have probably a good couple of lbs of DE already in the pool from trying to add DE to the old filter grids after backwashing, which unfortunately didn't take and most of it probably ended up going back to the pool through the pool return... So I now have a layer of what's most likely DE and some dead algae on the bottom of the pool.
Should I still add the full 6 lbs of DE to the new grids?
Or will the new grids be able to scoop up some of that DE laying on the bottom of the pool, either just by running the pump or by connecting my Polaris 340 cleaner to vacuum the bottom?
Or do I need to get rid of the old DE somehow before installing the new grids?
If I add too much with all the old DE, I'm afraid the brand new grids get caked up immediately and I have to take them out and clean them immediately? Or if I add too little, the new grids might get clogged because of that?
Some help needed please!!