We moved into this house about 5-6 years ago and I have kept the pool running through blind luck It is an inground fiberglass pool that was put in back in the 70's. Holds about 14K gallons and has a DE filter. The only visible piping is by the pump and filter and the only visible valve is the back flush valve where I flush out the filter. Trying to get it up and running after fighting with Home Warranty company and pool repair company to fix my filter which wouldn't hold DE anymore. Got that fixed and almost have pool clean but for some reason it has started sucking water from the drain instead of through the skimmer basket. I have no idea how it happened or how to fix it. Like I said the only visible valve on the entire system is the backflush valve. Any ideas at all??
I hate the dang pool because i have to clean it but the kid loves it so I have to get it working right again.