Anderson Water Service Panel Upgrade and Installation Guide

Recently, we were provided the opportunity to work with Anderson Brass Company by testing their improved RV water service panel. We replaced the existing plastic Anderson 200RV water service panel in our fifth wheel’s utility distribution center (UDC) with a better-engineered retrofit panel. Unlike the old plastic valve system, the improve version is manufactured with brass fittings. The old valve was susceptible to leaking and unreliable.

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About Anderson Brass Company:

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

How the Anderson Water Service Panel Valve System Operates

The Anderson Valve System Panel 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 onboard water tank. And, prior to winterizing our system for storage, we turn it to the specified Winterize, when we pump antifreeze into our RV’s water system. Or, we turn it to Normal, when we need to use the RV’s onboard water pump.

The Old RV Water Service Panel #200RV

The former Anderson Water Service Panel we replaced was a #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 keep the valve functioning properly. It also has four positions for selection, but is not easy to read what position the knob is actually in.

Unfortunately, the former 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 instruction for a leaky valve. They would provide replacement cores if the valve failed.

The back of the old valve #200RV

However, now, ABCO has manufactured a much better solution.

The Wave of the Future

Anderson Brass Company has recently redesigned and developed a much-improved version of the water service panel. The new retrofit panel that fits our 5th wheel, MANRV101RF *** is simply amazing! This one will alleviate future valve issues or failures. We think it will revolutionize the RV industry for water selection valves.

The product’s construction and assembly is top notch. The new Anderson Valve is constructed with all brass components on the back of the housing panel. It features teflon seals to prevent leaks while ensuring a lifetime of reliable service.

The new Anderson water service panel provides swiveling attachment points to provide strain relief for the water line connections. This will also aid 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.

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 the former’s four positions. The knob’s positions are now marked with easy-to-read lettering.

The much-improved new valve knob rotates smoothly unlike the old one. Just as important, it’s a direct drop in replacement for the old valve. The new Anderson Valve replaces the old housing and valve body perfectly.

Side by side comparison. Notice the properly labeled new valve on the right. Notice the better labeling on the face of the panel?

Oh, and very important to note here. This new part has been certified to be compliant with NSF/ANSI 61. This is the lead-free brass listing required for drinking water. And the best part? The Anderson water service panels are made in the U.S.A.!

The new all-brass assembly does not use the same plastic core with O-rings. It is an all brass body with teflon seals.

Watch our video clip for explanation how it works:

Preparing for Installation:

To replace the Anderson water service panel in our fifth wheel, we had to remove all of the contents from our basement. Being we’re full-time RVers, this ended up actually being a good time to weed through any unwanted gear and parts in our basement cargo compartment.

After the space was clear, we removed a piece of the basement wall to allow us to access to the water-line 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 lantern to provide better lighting.

Anderson Valve Replacement How-to-Guide

Removing the Old Water Service Panel

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.  We made sure we relieved all of the pressure. The last thing we needed was water spraying all over our basement when disconnecting the lines.

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

Installation Tip: Take a photo of the connection points so you have a reference of how the water lines should assemble.

Removing the old valve box is as easy as unscrewing and removing the eight screws that hold the valve box in the utility distribution center (UDC) wall.

Installing the New Water Service Panel

We replaced the old valve box with the new housing into the wall. However, we recommend not screwing it into place yet. Leaving it loose helps in getting the water lines reattached. By doing so, it allowed us to have a little 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.

The back of the new MANRV-101 RF water service system.

Once all the lines were reattached and tightened, it was time to fasten it into the new housing and the UDC wall by replacing the screws. After, we re-energized the water to the coach and inspected for leaks.

The properly installed new Anderson Water Service Panel

We made sure we cycled the valve through all of the positions while inspecting our work.

From start to finish, this installation took us only 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.

An Important Note:

RV owners and installers need realize that 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 prepare for those discrepancies by having necessary replacement parts and tools on hand.

Obtaining the new Anderson Valve Replacement:

You can order the MANRV101-RF through the OEM or directly from their website. For more information, check them out at

Read more…

RV Upgrades, Installation and How-To Guides



*** Disclaimer: We may receive compensation from companies such as this who’s products we review, trust and may recommend. We test each product thoroughly and give high regards to those who deserve such opinion. We are independently owned and the opinions expressed here are our own.


6 Replies to “Anderson Water Service Panel Upgrade and Installation Guide”

  1. Great write up on a fantastic improved replacement product!

    For your readers, Anderson Brass will at the 2019 North American Heartland Owners Rally this coming June in Goshen, Indiana.

    1. Thanks for taking the time to read our blog post, Jim. Good to see you on here. See you guys soon! 🙂 -Dan & Lisa

  2. I have had numerous problems with the defective valve with the water bleeding back through the valve. I had a temporary fix and have ordered a new valve ( which is on backorder) if some thing like this happened in the auto industry ( which is regulated). They would have had a recall and paid for their engineering miscalculation. This need to come off of Anderson’s back and not those camping customers who trusted you. This needs to be a good faith repair by Anderson Brass Co.

    1. Fred, thank you for taking the time to read our blog. We appreciate your input. Our suggestion is to make contact with Anderson Brass Company and tell them of your repeal. Best wishes and safe travels! -Dan & Lisa

  3. Received my new brass valve only to find I can’t rotate the knob? What a disappointing event, especially after having to wait on backorder

    1. Rick, we are so sorry that you’ve had such a negative experience. Please contact Anderson Brass immediately to get it taken care of. -Dan & Lisa

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