I used Leslie's brand PFS, but from my understanding, as long as it comes from a Pool Supply Store, and is labeled as use for Pool Filter Sand it is the same, just sometimes you'll get a different 'shade' to it.
I took 2 5gal buckets, filled each up a little over half way, stuck a small piece of wood under one of each bottom corner so it was on an angle and shoved a hose in. Swished it around by hand a couple times, then dumped the top water out and repeat. I did that 10-15 times per bucket, then let the hose run in each shoved down in the bottom for about 10 min each and was done.
When you put the sand in the tank, let it sit for a few hours and settle before turning on your filtration, otherwise there's a very good chance the sand will get sucked up and destroy your motor. I let mine sit for about 2 hours, turned on the filter, and within another 2 hours it was clear.