I have an aging pump that I think may be a culprit in my electricity consumption problem (>3000 kWh / month with just two people). It's an 11 year old AO Smith 177474 single speed. I see ads that claim that a variable speed pump can save a lot of electricity, but was hoping to get some advice on that before spending the extra $$$.
Intuitively, it seems to me that what counts is how much water is pumped through the filter and chlorine dispenser per day. If so, wouldn't a pump that slows down periodically just need to run longer to pump the same number of gallons?
Also, there's nothing wrong with the water flow. A pool guy told me that it's actually exceptional. I hate to replace something that works well. Is the variable speed function in the motor? Can I just get a different motor and convert my existing pump to variable speed?
Thanks for any advice you can offer!