Quick background: S. Florida in-ground pool, 13k-15k gallons. I have a skimmer and a vac line, and two returns, each plumbed 1.5" PVC.
Current equipment is a Sta-Rite P2RA5D-180L 3/4 HP wired 220v. My pool store mentioned this was "really more than 3/4". No idea on that. Also have a Hayward C800 cartridge filter.
I use a GW9500 Great White cleaner and run the pool 6-8 hours a day through the cleaner, (rarely the skimmer) - I have more than enough suction and never had water issues using 3" tabs.
I'm adding a Hayward AQR Salt System (T15) this weekend, and went ahead and ordered a new C900 filter to go with it. While I'm in there and doing a bunch of PVC work, I figure I have a good opportunity to change out the pump as well. From reading on here, it seems like a 2 speed may make the most sense for me - what would be a good replacement, size-wise, for my current pump?
I want something that will keep the flow high enough on low that the SWG keeps up - however I am a little concerned about anything providing MORE suction than my current setup - I get plenty of water movement with the current pump and frankly don't want to jinx the 30 year old plumbing. (although I did replace as much as possible when I remodeled a while back)