I just noticed that I have a leak in my backwash port when the valve is turned to filter. I woke up this morning thinking "wow, must have had some serious evaporation going on last night", just to discover the bucket where I keep the backwash hose at was overflowing. I don't know, but I'm thinking spider gasket? Filter is a Sta-rite 200# sand filter. Unit is less than 2 years old & I've always turned the valve in the same direction. Seems like it doesn't matter what direction you turn it! I hooked up a spare section of hose and now the leak is being diverted back into the pool. Could someone verify the gasket theory?