Quick answer
Turn off the water supply and check for a clogged drain. Use a plunger or drain snake to clear the blockage. If the problem persists, inspect the P-trap and shower pan for debris.
Confirm the symptom
- Water pools in the RV shower after use
- Drain makes gurgling sounds but doesn't drain
- Shower drain was working and suddenly stopped
Tools and prep
- Adjustable wrench
- Plunger
- Drain snake or wire hanger
- Bucket
- Rubber gloves
- Cleaning solution or vinegar
- Turn off water supply to the RV shower
Step-by-step troubleshooting
- Check for Visible ClogsDo: Remove the drain cover and look for hair or debris.Observe: Obvious blockage in the drain opening.Means: The clog is near the surface and can be removed manually.Next: Use a wire hanger or drain snake to remove the clog.
- Plunge the DrainDo: Place a plunger over the drain and plunge up and down.Observe: Water begins to drain or bubbles appear.Means: The clog is partially cleared or dislodged.Next: Repeat plunging if needed or move to the next step.
- Use a Drain SnakeDo: Insert the drain snake into the drain and twist it to break up or remove the clog.Observe: The snake meets resistance or pulls out debris.Means: A deeper clog is present in the drain pipe.Next: Remove the collected debris and flush the drain with water.
- Inspect the P-TrapDo: Place a bucket under the P-trap and use an adjustable wrench to disconnect it.Observe: Debris or buildup inside the P-trap.Means: The P-trap is clogged and needs cleaning.Next: Clean the P-trap and reattach it securely.
- Check the Shower PanDo: Remove the shower pan cover and inspect for standing water or clogs.Observe: Standing water or debris in the shower pan.Means: The shower pan is not draining properly.Next: Clean the shower pan and ensure it is sloped toward the drain.
- Flush the DrainDo: Pour hot water mixed with vinegar down the drain to dissolve any remaining buildup.Observe: Water flows freely after flushing.Means: The drain is now clear and functioning.Next: Test the shower by running water and ensuring proper drainage.
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Hair and Debris Buildup Hair, soap scum, and other debris can accumulate in the drain over time. | Common | Easy | Drain cover or strainer |
| Clogged P-Trap The P-trap can trap debris and prevent proper drainage. | Common | Easy–Medium | P-trap |
| Mineral Deposits Hard water can leave mineral deposits that clog the drain. | Sometimes | Easy | Vinegar or descaling solution |
| Improper Slope of Shower Pan If the shower pan is not sloped correctly, water can pool instead of draining. | Sometimes | Hard | Shower pan or professional installation |
| Frozen Pipes In cold weather, water in the drain pipes can freeze and block the flow. | Rare | Medium | Heat source or antifreeze |
| Damaged Drain Pipe Cracks or breaks in the drain pipe can cause blockages or leaks. | Rare | Hard | Drain pipe replacement |
Parts matching
Common parts needed to fix an RV shower that won't drain:
- Drain cover or strainer
- P-trap
- Vinegar or descaling solution
- Shower pan
- Heat source or antifreeze
- Drain pipe replacement
Purchase parts compatible with your RV's plumbing system to ensure a proper fit and function.
When to call a professional
- The drain remains clogged after multiple attempts to clear it
- You notice a foul odor or standing water in the shower
- You suspect a frozen or damaged drain pipe
- The shower pan is not sloped correctly and requires structural adjustments
- You are unsure about the cause or how to proceed with repairs
FAQ
How can I prevent future clogs in my RV shower drain?
Use a drain cover to catch hair and debris, and regularly flush the drain with hot water and vinegar to prevent buildup.
Can I use chemical drain cleaners in my RV?
Avoid chemical drain cleaners as they can damage RV plumbing. Use natural solutions like vinegar and baking soda instead.
What should I do if my RV shower drain is frozen?
Use a hair dryer or space heater to gently warm the area. Avoid using excessive heat or sharp objects that could damage the pipes.
Why is my RV shower drain making gurgling sounds?
Gurgling sounds often indicate a partial clog or a problem with the venting system. Clear the drain or check the vent for blockages.
How do I know if my shower pan is sloped correctly?
Water should flow smoothly toward the drain without pooling. If water pools, the pan may need to be adjusted or replaced.