Elsie,

If you put a sock in the skimmer basket and change it a couple times each day during the cleanup process the filter won't need a whole lot of backwashing at all. I had to let my pool go green for a month during 85 F weather, long story. With lots of bleach and the pump running 24/7 I had blue water within 5 days and sparkling clear water by Day 10. I brushed the bottom even though I couldn't see it, just to dislodge the algae. The skimmer socks caught nearly all the debris and I backwashed just the one time after the water was clear again.

AnnaK