First off, this is a great site! I wish I found it long ago.
I'm ready for a new pump motor (think the bearings are going on my single speed pump) and have been considering one of the VS pumps. However I've read so many negative comments about these pumps only lasting between 1 to 2 years, mainly due to electronics problems. I just don't know if it's worth the money considering my old Hayward Super II (A.O. Smith) motors each lasted about 10 years.
I have an 18x38 (25K) vinyl pool with a Hayward Sand Filter (S244T), 1.5hp pump, and Intellichlor 40. The entire system is plumbed with 1.5" pipe back when it was installed 23 years ago. Based on what I've read on this site, VS pumps are not that helpful where 1.5" pipe exists. I also found out that here in Atlanta, my electric is only 5.3 cents/kwh. Based on calculators out on the Pentair and Hayward sites, it might take me 6 - 7+ years to see an ROI on the VS pumps.
From a financial standpoint, it seems to make more sense to stay with the old 1.5hp (single speed) style motor because they 'apparently' last longer and my savings (based on the online calculators I noted above) would only save me about $25/month or $150/season. Far cry from the local pool store's estimate of $1,000. BTW, my pool season is roughly 6 months and I run the pump 12 hours/day.
Am I missing something that justifies a VS pump or should I stay with the old 1.5 single speed?
Appreciate any input. Thank you.