ok, I will stick with the 3/4" hp pump.

But I am still unsure about the sizing of the DE or Sand filter. All of the filters I have seen are sized by:

Effective Filtrarion Area = 1.40 square feet (example)
Design Flow Rate = 35 GPM (example)
Turnover- 8 hours = 16,000 gallons; 10 hours =21,000 gallons (example)

How do I find what is a minimum size for my pool. Like I said before, my cartridge is 70sqft and my pool is 10,000 gallons. I didn't see a coversion chart that I can cross reference.