Toilet Keeps Running In My RV ??

[kioticoachman]

Have an older 2001 Ford Coachman Class C Motorhome Catalina Sportsman. After flush activation Toilet (pump) decided to keep running. Any an all suggestions would be very much appreciated. Shut off the 12 DC and that stopped pump from running. WOULD like to know what/how is involved to track down and repair the problem! Hope this helps? Any an all suggestions would be very much appreciated. Thank you for taking the time to assist this SC with this matter.:? KC 62-66 USAF

[Jim]

Can you see water running into the toilet bowl after you've flushed? And it keeps running? That's probably going to be the flush valve on the toilet. Easy to replace, not that expensive.

Can't see water running into the toilet bowl? Do you see water on the floor of the bathroom? Or dripping to the ground underneath the RV? Then you likely have a split pipe, bad valve, or a bad water pipe connection somewhere. Might feel around the piping going to the toilet for drips of water.

The pump is pressure activated. Turns it on if the pressure drops (by turning on a faucet or toilet valve or caused by a leak) turning it off when the pressure reaches 45 PSI. So if there's a leak somewhere, and the pump switch is 'On' (most RVs have a 'water' switch in 1-2-3 places in the RV where you can switch the pump on or off), that leak causes a loss of pressure, which causes the pump to run to bring it back up.