Answer
Mar 28, 2016 - 06:08 AM
For RV's that are not used as full time living, it is suggested to replace the filter every 6 months or at the beginning of each season. (if you store your RV due to winter or off season conditions) The reason they use this number is because it is very difficult to measure water quality at the various campgrounds you may have visited. Since RV filters use activated carbon to filter out some of the harmful things in water, that activated carbon can also grow bacteria. Water flowing through the filter usually contains some amount of chlorine which the carbon removes, but also kills that bacteria. When a filter sits for long periods of time without fresh chlorine, bacteria is more likely to grow. The NSF certification means it uses a bacteriostatic material to combate this, but over time this becomes less effective. So time become more of a life ending number than the number of gallons run through the filter does.
A filter can begin to clog up and reduce water flow in very poor water conditions, but again time will be more likely the indicator than gallons capacity.
A filter can begin to clog up and reduce water flow in very poor water conditions, but again time will be more likely the indicator than gallons capacity.
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