Looking for a good sand filter

[CarlD]

I've found that a sand filter does a better job filtering if left "a little" dirty; sort of like adding DE which also coats the sand and raises the pressure. I've had good luck by backwashing about 10-15 seconds which removes most of the buildup and leaves me with a few psi over "totally clean". The improvement in clarity as viewed with goggles or with the light on at night is obvious. Not to mention saving some water.

Hope this helps, Tony

Now THIS is a cool idea worth trying! If it doesn't work, just backwash normally! I like it! I'm trying it next backwash!

What I REALLY like is the fail-safe--I can backwash completely.