Quote Originally Posted by leena View Post
ive been reading that sometimes the hp can be misleading per pump on what amount of electricity / rpm /watts/amps it actually uses. I don't know much about electricity but can you tell which of these 2 pumps use less electricity on LOW? Im assuming the one that uses the less will be the one that will cost me the least to operate.

http://www.amazon.com/dp/B00212NNU4/...=IPBL5VSUIDVO8 ........ I found a comment in the reviews that said this pump was rated 11 amps on high and 2.8 amps on low

http://www.amazon.com/dp/B002HHM020/...P89FGH0U&psc=1
That's not really an apples-to-apples comparison since one is just a pump and the other is a pump & filter combo.

Also, how much power the pump ACTUALLY consumes depends a lot on the specifics of your pool and the plumbing. The horsepower rating on pumps is typically a maximum power or break power consumption and then there also manufacturer who state just the power and a service factor or state the power multiplied by the service factor (service factor is how hard you can overdrive the pump without it failing). So a 1HP pump with a service factor of 1.5 is almost completely equivalent to a 1.5HP pump with a service factor of 1 when you run them at full speed.

I think for your pool you currently have a single-speed 1.5HP pump. If that makes you happy, then get a 2-speed, 1.5HP pump and I bet you'll run it on the lowest speed most of the time and save ~ 1/3 of the power. Beyond saying that (not much, I know), I'm not comfortable telling you which pump to buy. Perhaps other PF users have more insight....