Motor on the pump has been making slightly more noise than normal. Yesterday, I had a pool repair guy (for something else) come to fix the timer. He mentioned that noise indicates to him that the pump is on last legs..might last 1-2 years or go bad in a day or week..he cant really tell when. Anyhow, he mentioned Variable Flow Pump (Pentair) and said that with this pump, my usage charges should come down to about 15-25 dollars per month from the $60 or so (using the current set up), and I wont need to run my pump for 6 or so hours daily. He is quoting me $1300 (including installation) and 3-years warranty. He also mentioned that to replace my current pump (with similar stuff) will be ~ $750.
Secondly, he recommended a sand filter to replace the cartridge system. He said that cartridges cost about 150 or so, and then something else (I forgot) that needs replacement every 4-6 years, and this part is about 250 or so bucks. Total cost for this replacement parts was ~$400. He mentioned that sand filters cost much less (~$50) to maintain, and it is very easy to clean the filters..just turn a knob and system is cleaned, unlike cartridges. I am being quoted ~$750 with 3 years warranty.
My questions are: are these variable flow pump and sand filter good investments? Are these actually as useful as I am being told?
Of course, I am not going to replace anything as long as my current system works..it is only when something goes bad or I have to replace the cartridges. Just need to be informed and be prepared for the eventuality...