Adding DE to sand filter

[Rangeball]

I add it straight to the skimmer and figure it's nice and it's always nice and milky by the time it hits the filter

[Jeffski]

Added DE to my sand filter. Only problem is that it decreases the flow through the filter, so the waterfall from my diving board has less water flowing and sometimes the heater and SWG will shut off due to lack of flow. I am using less DE now than when I first tried it... but even a small cup of DE raises filter pressure by at least 2 psi and I can't imagine that small amount is really doing much inside the filter.

The positive for sure is that if I use some DE before I vacuum then I know it's catching the dirt instead of shooting it back into the pool, which is what sand alone will do. Then I backwash after vacuuming and add less DE for normal pump operation.