Pump question

MeSue

LifeTime Supporter
Jul 29, 2007
345
Florida
#1
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?
 

JohnT

Admin
Mod Squad
TFP Expert
Apr 4, 2007
9,468
SW Indiana
#2
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.
 
OP
OP
M

MeSue

LifeTime Supporter
Jul 29, 2007
345
Florida
#4
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.
 

JohnT

Admin
Mod Squad
TFP Expert
Apr 4, 2007
9,468
SW Indiana
#6
MeSue said:
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.
Look at current draw for both.
 
OP
OP
M

MeSue

LifeTime Supporter
Jul 29, 2007
345
Florida
#7
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.
 
OP
OP
M

MeSue

LifeTime Supporter
Jul 29, 2007
345
Florida
#9
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!