First off I want to thank everyone for the great information on this forum. It is a big help.
I posted my first thread on my new pool a few weeks back and got a lot of feedback on my pools pump configurations - but it has raised more questions for me and I am hoping someone can help clarify. To be honest I'm completely confused as to which way to go.
First, it was suggested that I go with a 2-speed pump rather than a 1 speed for my primary pump. The suggestion noted that I would save money by running on the lower speed. My electric rates are rather low $.09/kwh
If I would save money by running at a lower speed why wouldn't I just need to buy a smaller pump and run it at full speed? Are we saying the extra HP is unnecessary? Or is the extra HP just to get the pump started then it runs at a lower speed?
Would the pump just need to run longer if I ran at the lower speed and only used for the higher speed when using the suction side cleaner?
It was additionally noted that the water feature pump might be too large. If that is the case - how would I calculate the pump needs?
455 Sq ft
Depth 3.5 -> 7'
Top Existing Patio
Tanning Ledge with 2 bubblers
23' of raises wall w/ 3 sheers (2 - 3', 1 - 4')
100 % Gunite 6 1/2 sack mix min 4500psi
12x12" beam construction with .5" rebar every 4' around perimeter of beam
8" walls and 6" floors
(4) Bars of 1/2" rebar pool walls/floor on 8" center
Covers and drain at 6" center
Schedule 40 PVC
CPVC at pump and connections
Valve Four (4) 2" x 2.5" Jandy 3-way
Auto-Fill Line 3/4" sch 40 PVC with valve and vaccumm braker
Main Drain Paramount MDX
Six (6) pool returns
2" sch 40 PVC overflow
Control flow for weeping wall
Two Skimmer s - Pentair Bermuda with equalizer
2" direct plumbing for each skimmer and main drain with independant valves
(All Pentair - unless noted)
Filter 420 sq ft cartridge filter
Pump: 1.5 HP Whisperflo pump
Water Feature Pump: 1.5 HP superflo
Hayward Suction Side Automatic Cleaner
Salt Water Sanitizer
Two 500 Watt Lights
Tile and Coping: