Long story short - we bought a house last year with an inground pool. 17x34 - Hayward DE 48 filter. I have been slowly learning the ins and outs of the pool as the previous owner did not open it for several years.
Upon opening the pool it was green. I got the filter up and running and made the newby mistake of cleaning the filter grids and adding DE without checking for holes. I added 9 scoops of DE and watched as it spilled out into the pool.
I bought all new grids and replaced them - all the other parts are free from cracks.
Today I fired up filter with the new grids and added DE. The PSI in the tank sat at 10 PSI for a short time (few hours) and then quickly went up to about 20 PSI. It seems like I should backwash the system but I am wondering if I should run it with only a partial load of DE for the time being? This way it would have an easier time filtering out all the DE in the water??