Last month we talked about using water softeners for getting rid of minerals that may be in the water, but that's not the only step towards water purification. Because your water source changes at every destination, having filtered water is a necessity while on an RV trip. For one thing, you may not know what’s in your water. Water quality varies depending on where you are in the country and where the campground is getting it from. You don’t want to risk having your drinking water be full of sediment, which is not only a hazard to you, but can also collect in your plumbing system. There are different types of RV water filters and which one you need can depend on how often you travel and your own preferences.

There are two main types of RV water filters: inline filters and water filtration systems. Most inline filters are made for drinking water, as they go under the sink. There are also versions that do connect to your RV’s water supply that will handle all the water your RV uses, not just a single sink. Inline filters can be ideal if you do not use your RV all the time, due to their set-up. However, you’ll want to make sure you have one that is bacteriostatic. That is, the filter media keeps bacteria from growing, which can happen if the filter doesn’t get used for a while. KDF filters are designed to prevent this. The Camco 40043 TastePure is an inline exterior mounted KDF unit with a 100 micron filter (microns refer to the size of the particles the filter can handle). It has a 2.5 gallon flow rate and can last 3-4 months depending on how often it's used. The Shurflo 94-009-50 Waterguard is an inline KDF filter that can work as a universal replacement. It has a 5 micron filter with a 1.5 gallon flow rate. It lasts through 3900 gallons of water.

Canister based water filtration systems on the other hand are connected to the RV’s water system to filter all the water coming in. They come as single, dual, or even triple cartridges. Single versions have one combination filter, dual cartridges use a separate sediment filter and a taste/odor filter, and triple systems typically have two sediment filters and a taste/odor filter. Carbon filters are used to take care of taste and odor problems. If you go RVing often or full time, water filtration systems are the better option. The Flow Pur dual filtration system has a sediment filter and a KDF carbon filter. It connects to the outside water supply and can last about a year before the filters need replacing. Camco HL-200 is a single canister unit that has a 2.5 gallon flow rate and lasts through 11,000 gallons.

No matter what type of RV water filtration you use, the filters will eventually fill up and have to be replaced or cleared. Keep in mind inline filters also do not last as long as canister water filtration systems. If you notice a difference in the flow rate, an obstructed water filter may be the cause. Replacement cartridges are available for brands such as Camco, Shurflo, Flow Pur, and Culligan.

Choosing RV Water Filters