Added some DE over the weekend. Kept messing up and adding too much. Pressure gauge wouldnt move and then an hour later the returns were not flowing at all! Kept backwashing and starting over. I am down to around 5 ounces by volume and that is still restricting flow quite a bit when my pump is spinning at 2000RPM which normally pretty strong.
That is the bad news. Good news is that nearly all silt is gone! I keep brushing at least once a day and the pool looks great. Cant wait till it warms up.
Smallest bag of DE I could find locally was 25#. It was cheap enough but using 5 ounces at a time will keep me supplied indefinitely. I know you can use DE in gardens but its a different variety, I may still check to see if my wife can use some of it.