Emilie Meyer
RV showers are a great addition to your camper van, especially for long trips or full-time living. Installing a shower pan is the first step in setting up an indoor shower in an RV. A shower pan acts as a boundary to prevent water from leaking onto the bathroom floor. There are various options for shower pans, including hard plastic, ceramic, resin, acrylic, and steel. While commercial RV shower pans are available, some prefer to build custom shower pans using plywood and waterproofing techniques. Others opt for a simple and cheap solution, such as a flexible drain pipe and a shower pan that slopes towards the drain. Ultimately, the decision to install a shower in an RV depends on individual needs, priorities, and considerations of space, cost, and time.
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What You'll Learn
RV shower pan installation
Installing a shower pan in an RV is a complex process that requires careful planning and execution. Here is a step-by-step guide to help you through the installation process:
First, it is important to choose the right type of shower pan for your RV. There are various options available, including hard plastic, ceramic, resin, acrylic, and steel. Each material has its own advantages and disadvantages, so it is essential to consider factors such as durability, weight, and ease of installation. For example, while ceramics offer a classic style, they are heavy and fragile, making them less suitable for a mobile vehicle. On the other hand, hard PVC plastic is impact and stress-resistant, mould-resistant, and commonly used in factory RV showers.
Once you have selected the appropriate shower pan, the next step is to prepare the installation site. Ensure that you have a suitable support structure in place for the shower pan to rest on. This structure should be sturdy and level, providing a stable foundation for the shower pan.
Now, let's move on to waterproofing, a critical step in the installation process. First, cut your PVC liner to size, adding an extra 3-4 inches around the perimeter and a little more for the entrance area of the shower. This liner will act as a protective barrier, preventing water from seeping into the surrounding structure. After cutting the liner, attach it securely to the platform using construction adhesive.
The next step is to install the shower drain. Cut a hole in the liner and the plywood sheet to accommodate the top piece of the shower drain flange assembly. Ensure that the hole is just barely larger than the drain piece, allowing it to fit snugly. Attach the top portion of the drain flange assembly and secure it in place.
With the drain in place, it's time to install the shower pan itself. Place the pan onto the platform, ensuring it is level and properly aligned with the drain. Use construction adhesive or 100% silicone to secure the pan in place, applying it liberally in a zigzag fashion.
Finally, finish the installation by adding any necessary plumbing connections, shower curtains or doors, and a means to heat the water if desired. Test the shower thoroughly to ensure there are no leaks and that the drainage is functioning correctly.
Some additional tips to consider during the installation process:
- Ensure that you follow the manufacturer's instructions for any products used, such as adhesives or sealants.
- When working with power tools or sharp objects, prioritize safety by wearing protective gear and taking the necessary precautions.
- If you're unsure about any aspect of the installation, don't hesitate to seek advice from professionals or experienced RV enthusiasts.
Remember, installing an RV shower pan requires careful planning and attention to detail. Take your time, work methodically, and don't be afraid to adapt these steps to suit your specific RV model and personal preferences.
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Waterproofing the shower pan
Planning and Materials
Before starting the waterproofing process, it is crucial to have a solid and securely installed shower pan. The shower pan should be made of materials that are impact and stress-resistant, such as hard PVC plastic, which is commonly used in factory RV showers for its durability and mildew resistance. Other materials like ceramics, resin, acrylic, and steel are also available but may require careful consideration due to weight, fragility, or other factors.
For the waterproofing process itself, you will need materials such as a waterproofing membrane (e.g., RedGard, Durock, Mapei Aquadefense, or AVM 750 Paste/Fabric Mesh), plywood, shims, waterproofing tape, construction adhesive, screws, and a paintbrush or roller for applying the membrane.
Waterproofing Steps
- Start by dry-fitting your drain assembly to ensure proper alignment. Cut and assemble the necessary pipes, using cement to bond them together.
- Cut a PVC liner to size, adding a few extra inches all around and more for the entrance area of the shower.
- Cut a plywood sheet to the same dimensions as the shower pan and mark and cut a hole for the shower drain flange assembly.
- Install the PVC liner directly onto a platform or base created with wood shims and foam, ensuring it covers the plywood structure.
- Apply a waterproofing membrane to the corners, seams, and cuts of the liner. Use special tape designed for waterproofing, applying it on top of the freshly painted membrane.
- Paint an additional layer of the waterproofing membrane on top of the tape.
- Optionally, you can add another layer of plywood on top of the membrane for added durability, although it is not waterproof.
- Finish the waterproofing process by applying mosaic covering or tiling directly onto the membrane or plywood.
Alternative Methods
While the above process is a common and effective method for waterproofing an RV shower pan, there are alternative methods to consider:
- Using FRP (fiberglass reinforced hard plastic) panels: FRP panels are thin, lightweight, easy to attach, and can be cut to specific sizes. They are a popular choice for waterproofing DIY showers in campers.
- Impregnating agent and rubber membrane: This method involves using an impregnating agent, a rubber membrane (such as Mapegum WPS), and a mosaic tile coating with a final glaze to waterproof the shower pan.
Remember, the key to successful waterproofing is to ensure that all materials are properly sealed and installed, and to address any potential areas where water seepage may occur.
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Using a commercial shower pan
If you're installing a shower in your RV, you'll need a shower pan and shower enclosure, a shower door or curtain, plumbing to the water supply system, shower valves, a shower nozzle, and a way to heat the water. You can buy commercial RV shower pans and shower enclosures from various suppliers, including RVPartsCountry, Dyers RV Parts, and PPLMotorHomes. There are even versions with small bathtub shower combinations.
The first step in installing an indoor shower in an RV is to securely install a shower pan. The risk of water seepage in a DIY shower is high, so the basis of a good fixed shower is the installation of a good shower tray. There are various sizes and materials on the market: hard plastic, ceramic, resin, acrylic, and steel. Hard PVC plastic is impact and stress-resistant, as well as mould and mildew-resistant, so it's a popular choice for factory RV showers. Ceramics are elegant but heavy and relatively fragile, and it can be difficult to find the right measurements or to work with them yourself.
If you're waterproofing your shower pan, you can follow the process recommended by Oatey for their PVC pan liner/membrane. You'll need an electric staple gun and staples shorter than the thickness of your framing lumber. You'll also need to trim the Oatey pan liner/membrane to be the size of your shower floor, adding an extra 4" or so to each side for good measure. You can then use Liquid Nails construction adhesive to secure the lower shower drain piece to the plywood base, ensuring the four plastic nobs on the bottom of the drain fit into the holes cut into the wooden floor base.
You can then dry fit your now-cut liner, using a ring of Lexel/silicone on top of the bottom drain piece's perimeter. Add construction adhesive on top of your shim + plywood base, smooth out your wrinkles and air pockets, and work from the shower drain out. Cut small Xs into the pan liner on the top of each of the clamping ring bolts to expose the heads, then push down on the pan liner where it meets the drain to ensure it makes good contact with the siliconed lower drain piece. Cut an X in the pan liner on the inside of the drain, then cut around the inside of the drain perimeter and remove the pieces of the pan liner from the inside of the shower drain.
Finally, smooth out the pan liner again, making sure it's making good contact with the shower floor, and add a bead of construction adhesive along the top of the curb. Use your staple gun to secure the pan liner to the outside of the shower curb, ensuring you don't puncture the liner where it will be exposed to water. Let this dry overnight.
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Mortar-free shower pan
A mortar-free shower pan can be installed in an RV or camper van. This is a more modern method of installing a shower pan, which does not require the use of mortar or tile.
The first step is to draw the outline of the shower floor on the subfloor. This will be used as a reference for setting the shower pan in place. The shower pan can be purchased from a variety of retailers, such as RVPartsCountry, Dyers RV Parts, and PPLMotorHomes. These retailers offer a range of options, including shower enclosures and bathtub shower combinations.
The shower pan should be installed first, before any other components of the shower. This will ensure that it is properly secured and level. The pan should be placed on a level surface, such as a subfloor, and a shower enclosure or curtain can be installed around it. The shower pan will need to be sloped towards the drain to ensure proper water drainage. This can be achieved by parking the RV on a slight slope or by creating a slope within the shower pan itself.
There are a few ways to create a slope towards the drain. One method is to use a sand mix, which is a combination of sand and Portland cement, to create a sloped fill layer. Another method is to use a pre-formed, pre-sloped foam pan, which can be waterproofed and tiled over. This method is faster and easier than the traditional sand and mortar method.
It is important to ensure that the shower pan is properly sealed to prevent leaks and water damage. A waterproof membrane, such as a chlorinated polyethylene (CPE) membrane, can be installed on top of the shower pan. This will create a waterproof barrier that will direct water towards the drain.
Additionally, a layer of expanded galvanized metal lath can be placed on top of the pan to reinforce it. This will provide extra support and help to prevent cracks or leaks.
Overall, installing a mortar-free shower pan in an RV or camper van is a feasible project that can be completed using a variety of methods and materials. It is important to ensure that the shower pan is properly secured, level, and sealed to prevent leaks and ensure long-term use.
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Shower pan maintenance
Shower pans are an integral part of RV bathrooms, providing a designated space for showering and preventing water from leaking onto the bathroom floor. Maintaining your shower pan is crucial to ensure its longevity and optimal performance. Here are some detailed instructions for effective shower pan maintenance:
Regular Cleaning:
Shower pans can accumulate soap scum, mildew, and hard water stains over time. It is recommended to clean your shower pan once every 7-10 days, or more frequently if shared with others. Here are some cleaning steps:
- Clear the drain: Remove any hair, dirt, or debris from the drain to ensure it is functioning properly.
- Choose suitable cleaning products: Select cleaning solutions that are appropriate for the material of your shower pan. For example, vinegar is great for cutting through grime on acrylic pans, while baking soda paste can tackle tough stains on any surface. Always review the manual of your shower pan before applying any products.
- Apply the cleaning solution: Spray or apply the chosen cleaning solution to the shower pan floor, paying close attention to corners where grime accumulates.
- Scrub gently: Use a gentle sponge or cleaning brush to scrub the shower pan floor in a circular motion.
- Rinse and dry: Thoroughly rinse the entire shower pan with clean water to remove any residue. Dry the pan with a squeegee or cleaning cloth to prevent water stains and maintain a dry shower environment.
Preventative Measures:
- Wipe down the shower pan after each use with a squeegee or soft cloth to prevent soap scum buildup.
- Ensure proper bathroom ventilation to reduce moisture levels and inhibit the growth of mold and mildew.
- Regularly inspect your shower pan for any signs of wear and tear, paying close attention to corners and hidden areas.
Deep Cleaning:
For more significant issues, such as stubborn stains or extensive wear and tear, you may need to adopt more intensive cleaning methods or seek professional help:
- DIY concoctions: Combine equal parts vinegar and water, or make a paste with baking soda and water, to create powerful and eco-friendly cleaning agents that tackle tough stains without harsh chemicals.
- Commercial cleaners: For more challenging issues, you can use store-bought cleaners or commercial rust, mold, or limescale removers. However, exercise caution when using harsh chemicals like ammonia, hydrogen peroxide, or bleach, as they can damage certain materials if used too frequently.
Replacement:
Over time, your shower pan may need replacing due to significant movement, visible leakage, or large cracks. Replacing a shower pan is a complex project that may require professional assistance and advanced plumbing skills. It involves carefully removing the old pan, preparing the subfloor, and installing the new pan with precision to ensure proper fit and drainage.
By following these maintenance instructions, you can extend the lifespan of your shower pan, ensuring a clean, functional, and water-tight shower area in your RV.
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Frequently asked questions
No, it is not recommended to use a regular shower pan in an RV shower. This is because the movement of the RV will likely cause a regular shower pan to crack. Instead, you can purchase a commercial RV shower pan, which is designed to withstand the vibrations of a mobile vehicle.
RV shower pans are typically made of hard plastic, which is impact and stress-resistant, as well as mould and mildew-resistant. However, other materials such as resin, acrylic, steel, and even ceramic are also available.
It depends on your needs and priorities. If you plan to use your RV for long trips or live in it full-time, a shower can be very useful. However, if you're working with a smaller vehicle or plan to use campgrounds with shower facilities, you may not need to install a shower in your RV.
