I know they say to clean this sort of filter 1-2 times a year. I also hear many people clean before the start of pool season. I've had my pool for about 9 months now and I cleaned the filters (4 cartridges) in October. I'm not noticing anything strange and the pressure on my filter has remained steady. So I guess the question is do I wait for the pressure to increase or preemptive strike it before dead on summer.
Thanks.
Thanks.