I recently bought a pentair intelliflo pump to run my water features i just added.
I compared my old skimmer pump power usage with the new Intelliflo power usage.
i used a T and a Valve i had already plumbed into the system to divert the flow of the old pump into a 5 gallon bucket
I then timed how fast it would take for the pump to fill up the 5gallon bucket (low speed).
then i tested the new Intelliflo. I changed the speed of the intelliflow to fill up the bucket just as fast as the old pump would do on low, then i tested the power usage
now i can compare actual power used given that the volume of flow was the same for each pump.
4.2 amps X 120volts on low speed - 504 watts. would fill a 5 gallon bucket in 12 seconds
108 watts on the pump display (meter actually showed a bit less power being used than the pump showed), about 750rpm - would fill 5 gallon bucket in 12 seconds.
so it is using close to 1/5 the power of the old pump. i was amazed. for once the salesmen at the pool store were actually right. i at first thought the power savings came from the ability to run the pump on super low speed
but thats not the case, the pump is much more efficient as well, regardless of speed.
the question is...is my old pump just really bad? and all the newer 2 speed pumps also energy efficient? or is it just the intelliflo series pumps that are super efficient?
can i buy another affordable pump to replace my main skimmer pump that is also just as efficient at 2 speeds? or do i got to spend anther $1000 on a intelliflo?
i only need a fraction of the power my intelliflo can put out, so i actually bought way more pump than i needed, but im not sure what my other options are