[biker1]

Every 6 months may be a bit of overkill. I believe they use standard 20"x4.5" filters. I have a dual canister 20" x 4.5" system with a 5 micron pleated sediment filter and a 5 micron carbon block filter. The main purpose of the sediment filter is to extend the life of the carbon block filter by removing any sediment that would clog the carbon block filter. The pleated sediment filter can be hosed off and reused. Given the chlorine level in The Villages, the amount of water we use daily, and the chlorine absorption specs of the carbon block filter, I replace the carbon block filter every 2 years. At that time, I hose off the sediment filter but it is always pretty clean. I do replace the pleated sediment filter after 6 years ( two hose offs). I have tested the water at 2 years for chlorine leakage and found none so 2 year replacements on the carbon block filter is fine.

Originally Posted by Kelevision

I’ve had them for 4 years and never had any issues. I have my filters changed every 6 months.

[jrref]

Originally Posted by biker1

Every 6 months may be a bit of overkill. I believe they use standard 20"x4.5" filters. I have a dual canister 20" x 4.5" system with a 5 micron pleated sediment filter and a 5 micron carbon block filter. The main purpose of the sediment filter is to extend the life of the carbon block filter by removing any sediment that would clog the carbon block filter. The pleated sediment filter can be hosed off and reused. Given the chlorine level in The Villages, the amount of water we use daily, and the chlorine absorption specs of the carbon block filter, I replace the carbon block filter every 2 years. At that time, I hose off the sediment filter but it is always pretty clean. I do replace the pleated sediment filter after 6 years ( two hose offs). I have tested the water at 2 years for chlorine leakage and found none so 2 year replacements on the carbon block filter is fine.

It really depends on where you live in the Villages. Some may need a change once a year. I have a friend who does what you do but goes every 5 years no problem. I have another friend who's trying to go 10 years.

[biker1]

The chlorine level in The Villages potable water is advertised. Carbon block filters are spec'd to handle a specific amount of chlorine. How much potable water you use is easy to determine from your water bill. The calculation of how often to change the carbon block filter is a simple calculation. 5 years or 10 years between filter changes, unless you use very little water, if almost certainly outside the spec for a 20"x4.5" carbon block filter. However, people are free to do whatever they want, regardless of whether it makes any sense.

Originally Posted by jrref

It really depends on where you live in the Villages. Some may need a change once a year. I have a friend who does what you do but goes every 5 years no problem. I have another friend who's trying to go 10 years.

[Pugchief]

Originally Posted by biker1

The chlorine level in The Villages potable water is advertised. Carbon block filters are spec'd to handle a specific amount of chlorine. How much potable water you use is easy to determine from your water bill. The calculation of how often to change the carbon block filter is a simple calculation. 5 years or 10 years between filter changes, unless you use very little water, if almost certainly outside the spec for a 20"x4.5" carbon block filter. However, people are free to do whatever they want, regardless of whether it makes any sense.

Nova recommends changing the filters every 26,000 gallons. I asked how they determined that figure and the answer was basically that they are dirty enough at that point to be icky and inefficient.

If someone has a better MEASURABLE metric, please share. Saying 2 years or 5 years is meaningless since every household has different usage needs. A home of 4 people that lives in TV year around is vastly different than a single person that snowbirds.