Re: Changing of the Waste Valves
Reply #14 –
To simply replace the dump valves, it is not necessary to cut anything. Each waste valve consists of two flange assemblies, which are glued onto the waste pipes, and a center valve assembly section, which is bolted between the two flanges. To replace the valve, all you have to do is remove the 4 bolts, remove the old valve assembly, slide the new valve assembly in place, and reinstall the bolts.
If you wish to install a third dump valve, then you will have do some cutting. Every installation will be a little different, depending on how the waste pipes and original valves are positioned. Search "third dump valve" on this Forum to see MANY threads on different installations. See post below for sample photos of how it fit on our GV, and list of parts required:
Problems with third dump valve mod