We are having trouble with sand coming back in our return. Our pool store said they weren't sure if we needed just screw in laterals or the umbrella assembly with stand tube and fold up laterals, so they gave us both to have over the weekend and return what we don't need.
Couple of questions 1) if it has the screw in laterals, do you have to unscrew the laterals while down in the filter and unscrew all laterals to get the assembly out to even see what did need replaced? 2) if one lateral on an umbella assembly is bad, it appears you have to replace the entire assembly, is that correct?
Even tho I don't know what type we have till we get in there, I was considering changing to the umbrella type for ease of removal and checking, but hate to have to purchase the entire assembly if only one lateral is bad. Any thoughts?