swimnsaveusa wrote:Writchey wrote: Also, when was the last time you changed the sand? It is possible the effectiveness is now depleted.
I just moved into this property in June and have no way of knowing the history of the pool. When we made an offer for the property back in May the pool was clean and clear.
During the home inspection we ordered, the inspector noted the multiport valve was leaking so when escrow closed I went about cleaning up all the little things his inspection uncovered. I determined the leaking multiport probably needed a new O-ring so I replaced that, but unfortunately got the valve stem put back together wrong and the timer ran the pump when the valve stem was incorrectly positioned. Eventually through the help of a local pool supply house I assembled it correctly, but I don't know what effect letting the system run with the mis-aligned multiport might have had. Perhaps this could have damaged the laterals? If there is a serious probability misalignment could cause damage, you would think the design would incorporate a keying system to prevent botched alignments. Even something as simple as a heavy scribe mark would help.
If I cannot clean this up using the course I am on (shocking, scrubbing, and algaeside) I probably have no recourse except to look hard at the option of replacing the sand. How much would you estimate it should cost to have an expert accomplish this?
I want to emphasize that the sediment has changed color and decreased as I worked on getting rid of the green algae. The sediment is now definitely green colored, which strengthens my conviction that the filter is simply not removing what I vacuum. A pool supply store here recommended a sand rejuvenation treatment so I bought a bottle, but am waiting to gather more evidence before using it.
Will floculent help this issue? That, and Pool Bright were other suggestions to try.