David, glad it is working.

I just install what the pool stores sell. I do however prefer cleaning a pool with a high HP pump. As for normal filtering, a 1/2 or 3/4 seems more suited.

I think a two speed might be the best of both worlds.

I never gave the matter much thought until I started reading the comments of users in this forum. I will be doing some testing on my own pool for sure.

Dennis