When is the right time to clean my filter or change it?

A brand new filter should experience a pressure drop of 2 to 3 inches in the water column. As the filter ages, the pressure drop increases. Once the pressure drops exceeds 10 to 15 inches, it is time to change out the old filter and replace it with a new one.

You can make it easy to track when the filter needs to be replaced by screwing a differential pressure gauge into the top of the filter housing. These gauges are compatible with many filter housings and they offer a visual indicator of when a filter needs to be replaced.

For cleaning the filter, it depends on the material composing the media. Some paper media can be disposed. Felt, polyester and wire media are easier to clean and can be reused.