How to Fix RV Toilet Leaking on Floor

RV-ing is a great option to take when you want to enjoy camping without suffering the hardships of camping especially when it comes to the use of the bathroom. But what do you do if you suffer from toilet leakage?

You are left with two options which include taking it back to the dealership for repair or fixing it yourself. The former is a good choice especially when you don’t want to get your hands dirty but it is expensive. But for an easy and inexpensive method of repair, you can fix the toilet yourself by finding out how to fix the RV toilet leaking on the floor.

Now, if your toilet is leaking around its base, the most likely cause would be a bad flange seal between the toilet and the septic tank. To repair it, you would need certain equipment that includes.

Equipment for Repairing Toilet Leakage

  • New flange seal for your toilet model
  • Wrench or socket set
  • Teflon tape
  • Putty knife
  • Old towels
  • Hand mirror
  • Rubber gloves
  • Cleaning supplies

How to Fix RV Toilet Leaking on Floor

1. Verify the leak location

To fix the leakage in your RV toilet, you have to examine the toilet to verify the point of leakage. You have to be sure so you avoid mistakes in your repairs. Take a hand mirror and examine the back of the toilet and the bottom fittings to see where the leakage is coming from.

The toilet may be leaking from the water inlet valve or the flush valve so you have to confirm the point of leakage.

If the leakage is coming from under the toilet you will notice the leakage when you flush because water goes through the flange.

How To Fix RV Toilet Leaking On Floor

2. Shut off the water

You need to shut off the water inlet flow as the next step. If your toilet has no water valve, disconnect the water pump instead. Flush the toilet immediately to empty the toilet and get water out of the way.

3. Disconnect and remove the toilet

The toilet is being held down by two or three bolts which may be covered. You have to look for caps sticking up from the base of the toilet. Take off the cap with a putty knife then use a socket or wrench to remove the nuts holding the flange bolts.

You may find the nuts at different locations such as on each side of the toilet or one may be in front and the other behind or they use three bolts to hold it down. Loosen the toilet water supply from the inlet valve and pull the toilet away from the wall.

Pull out the toilet from the flange bolt and set it aside. This may cause a big mess so you may want to spread a towel or put a garbage bag on the floor before loosening the toilet.

4. Remove the old flange seal

The seal may be found around the drain hole underneath the toilet or it may be stuck at the bottom of the toilet. So find it and take it out.

If the seal is old and made out of wax, make use of the putty knife to take it off so the toilet base can be clean of flange debris so the new seal can seat perfectly.

5. Replace the seal

After cleaning the area, put in the new seal. Center it around the toilet drain flange while following the producer’s instruction.

6. Install the toilet back

Slip back the toilet in place over the flange bolts and position the toilet drain into the flange seal.

Ensure that the toilet, the drain, and the flange are connected properly. Once it is positioned properly, re-tighten the nut.

Reconnect the water supply using the Teflon tape after cleaning the supply nozzle. Turn on the water supply to see if everything is working perfectly.

Read more: Should You Change Your Own Oil?


Your toilet is now fixed and ready for use. If you notice any other issue you may not handle, you can call on a professional to help you check things out.

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