City water inlet leaks

TM3023 city water inlet is leaking water under pressure when using the pump & freshwater tank.

Besides replacing the inlet, is there any other way to repair this?

Are all inlets interchangeable, or is this likely to grow into a 'plastic plumbing' project? Looks like there are threaded fittings on the inside.

[YWORRYDOG]

The inlet will twist off of the TM. Just a short turn counter clock wise. The one way valve is part of it. You should be able to get a new one at most RV dealers.