I also have a pool that was built around 2012, I don't have any problems with the filter but I have had problems with the mother board on my Hayward gas pool heater. I have had T and D and Hayward out 7 times but they still can't seem to narrow down the cause. I asked them (Hayward) to just change out the heater, but they would rather just keep coming out and repair it. Seems to me to not be very cost effective.