Anderson Valve System Replacement

By:  Lisa & Dan Brown

28th Feb, 19

Recently, we were provided the opportunity to work with Anderson Brass Company by replacing the existing plastic Anderson Valve System in our fifth wheel's Utility Distribution Center (UDC), and test a better-engineered brass valve. Originally, our 2016 Heartland Landmark 365 came equipped with a plastic Anderson Valve - which is more susceptible to leaking.

How the Anderson Valve System Operates

The Anderson Valve System has a knob in the UDC that rotates either left or right to allow us to select how water will be provided to our coach. For example, we turn it to City when we are in a campground with a water hookup. We turn it to Fill when we are adding freshwater to our RV’s on-board water tank. Prior to winterizing our system for storage, we turn it to the specified Winterize when we pump anti-freeze into our RV’s water system. There is also a Normal option for when we need to use the RV’s on-board water pump.

Anderson Brass Company Valve #200RV

The Anderson Valve we replaced was the #200RV; which has a plastic main body with a rotating knob. It would click and lock into each position as we would rotate the knob. The valve has an internal plastic core that relies on several rubber O-rings to maintain pressure and to keep the valve functioning properly. It also has four positions for selection; however, it's difficult to read which position the knob is actually in.

It is also worth noting that the plastic valve has been prone to failure; especially if the knob is rotated while under pressure. In the past, many RV owners would call Anderson Brass Company to seek guidance and further instruction to fix a leaky valve. Anderson's would provide replacement cores if the valve failed. Fortunately, they have  recently manufactured a much better solution!

IMAGE: The back of the old valve #200RV

The Wave of the Future

Anderson Brass Company has designed and developed a much-improved version of the water valve system. The new valve, MANRV101RF, is simply amazing and will reduce future valve failures. We believe it will revolutionize the RV industry for water selection valves. The valve's construction and assembly is top notch - constructed with all brass components on the back of the housing panel. It also features Teflon seals to prevent leaks while insuring a lifetime of reliable service.

The new valve system provides swiveling attachment points to provide strain relief for the water line connections. This also aids in attaching the water lines to the valve’s main body with little to no resistance. A well constructed brass check valve has been added to ensure water pressure is maintained and should help in eliminating unnecessary cycling of your water pump when dry camping.

IMAGE: New brass body for durability and longevity MANRV101RF

Anderson Valve Company's Product Developers have designed the new valve with three positions for the knob instead of four positions like the plastic valve. The knob positions are now marked with easy-to-read lettering. The new valve knob also rotates smoothly unlike the old one. Maybe one of the most important details to mention is that this new valve has been certified to be compliant with NSF/ANSI 61 - the lead-free brass listing required for drinking water.

IMAGE: Side by side comparison. Notice the properly labeled new valve on the right.

Anderson Valve Replacement How-To Guide

To replace the Anderson Valve in our fifth wheel, we had to remove all of the contents from our under-storage. Being we're full-time RVers, this was a great opportunity to sort through any unwanted gear and parts in our cargo compartment.

After the space was clear, we removed a piece of the under-storage wall to allow access to the waterline attachment points and the back of the old valve. Since we had gained exposure, this was also a good time to inspect all the water lines and fittings.

We only needed two tools for the installation; a Robertson Head Screw Driver and a pair pliers. We also had some extra shop towels and a small lantern to provide better lighting.

Once we we were satisfied with our inspection, we shut off the water in our coach. We also opened the kitchen faucet to relieve the water pressure in the lines - making sure we  relieved all of the pressure. The last thing we needed was water spraying all over our under-storage when disconnecting the lines.


Next, we placed some shop towels under the water lines to catch any residual water when we disconnected the lines from the valve fittings.

Installation Tip: We took a photo of the connection points so we had a reference of how the water lines were to be assembled.

Removing the old valve box is as easy as unscrewing and removing the eight screws that hold the valve box in the UDC wall. We replaced the old valve box with the new housing  and placed it into the wall. However, we recommend not screwing it into place right away. Leaving it loose helped to reattach the water lines - allowing more wiggle-room for tightening up the water lines and connections. We utilized the newly-designed swivel points for easy attachment of the water lines.

Once all the lines were reattached and tightened, we screwed in the eight screws into the new housing and the UDC wall. After we re-energized the water to the coach and inspected for leaks, we made sure we cycled the valve through all of the positions while inspecting our work. From start to finish, the installation only took about an hour to replace the valve. It was a simple upgrade to our RV’s water system that will ensure leak-free camping for years to come.

Important Notes:

Anderson Brass Company is not responsible for substandard piping or poorly installed fittings. These are a couple of issues you may encounter when doing the installation. We highly recommend that you be prepared for those discrepancies by having the necessary replacement parts and tools on hand prior to installing a new valve. If your RV’s water system has a pre-existing external check valve on the outside of the water pump, you will have to remove it when you install the MANRV101RF valve.

Ordering a Anderson Valve Replacement:

The MANRV101RF can be ordered through the OEM or directly on Anderson Brass Company's website at

About Anderson Brass Company:

Anderson Brass Company is a family owned business based in Hartsville, SC and has been in business since 1931. Their modern manufacturing facility was built in 1982 and features state of the art technology. They have been a primary provider of water selection valves for multiple RV manufacturers for many years.

Lisa & Dan Brown

Lisa & Dan Brown

Dan & Lisa Brown are known as "Always On Liberty". They are two Coasties (30 years Retired & Veteran) who fought Mother Nature guarding our coasts and saving souls now travel between them with their two Maine Coon Cats. They have been full-time traveling since 2014 with their 2016 Heartland Landmark 365 Ashland (formerly '16 Heartland Cyclone 4100). They are avid hikers, ADV motorcycle riders, bloggers and travel enthusiasts. They enjoy visiting, hiking and riding our National Parks, Monuments, Historical Sites, Battlefields and strange places. 
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