On Mon, 15 Aug 2011 05:46:13 -0700 (PDT), wrote:

48,000 gallon pool here, DE filter and it can be kept clean
with two 1 hp pumps. One is the main one and it needs to
run about 6 hours a day. The other is the Polaris cleaner
booster pump and it runs about 1/3 of that time

This pool is smaller, at less than 40K gallons, and the filter is a huge
oil-filter-like contraption in a big black bubble about 4 or 5 feet tall.

There is no vacuum cleaning to speak of. I did buy some hoses to clean the
pool manually but it ends up being a hassle because the pool was never
designed for a vacuum.

If I added a vacuum, the builders told me, it would break the jets that pop
up on the bottom of the pool anyway.