We just got this free filter and pump so we are swapping out our 100# filter for a 200# one. I wasn't expecting a pump, too, but we got one. Our current pump is one speed 1 HP, the one we just got is two speed 2.5 HP. Which one should we use?
Pump question
- Thread starter MeSue
- Start date
The smaller one. It's already bigger than what you need. Unless the 2.5HP's lower speed and energy use is equal or lower than the 1HP.
Hey John... I just found out that the 1 HP has an rpm of 3450. but the 2 speed 2.5 HP has an rpm of 1725 on low and 3450 on high. Would you still say to go with the 1 HP? My husband is thinking the 2 speed would be better.
heh... just saw your edit as I was posting the RPMs. So now it's looking like the 2 speed is the better choice.
The draw for the 2 speed was less on low speed and more on high speed than the one we were using. We ended up switching over to the 2 speed. It is also much quieter, and appears to move just as much water as my old one did.
A two speed pump on low has 1/4 the HP of high speed. So a 2.5 HP two speed is 0.626 HP on low.
I just got my first power bill since switching from the 1-speed pump motor to the 2-speed running on low. I also switched about half-way into the billing cycle from running it 24/7 (Baquacil) to running 12 hours a day (after switching to chlorine). My power bill was lowered by more than $50. Wow!
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