Coleman Niagra water pressure leak

[austinado16]

Thought I'd share this with other Niagra owners.

Just helped a guy locate a leak in his PUP that was coming from inside the left rear wall below the sink and out across the floor.

Turned out to be the plastic barb fitting that is threaded onto the one-way valve, which is mounted to the outside skin of the PUP.........and is where you hook up to a water supply.

The plastic fitting is female where it threads onto the bras one-way valve and I think that's why it had split.

This caused a leak both when using the PUP storage tank and the on board pump, or when hooked up to a water supply.

Might be worth removing the 3 screws that hold your water supply fitting to the outside of the camper, and pulling the fitting out until you can inspect the plastic barbed fitting.

[mike4947]

One of the most common leaks in an RV. Mainly comes from forgeting to force open the check valve when winterizing so antifreeze can reach that line and the valve.

[austinado16]

This one had split perpendicularly right through all of it's threads, so it appears it split due to being either overtightened, or just from age and the stress on the plastic from being so tight.

[tlhdoc]

Thought I'd share this with other Niagra owners.

This problem isn't limited to Niagaras.  It can happen with any trailer with a city water connection.