That's one way to "skin a cat" and prevent having to crawl under the trailer to empty the galley gray tank. It looks like your mod will work great "during the summer", however, if your original galley valve is located the same as mine, it is "inside the heated area" so there is no water exposed in any of the plumbing runs that are "below the coroplast". With your valve located outside the underbelly, water will drain "to the valve" in the exposed plumbing run and during winter use, will be subject to freezing and possible pipe damage. If you left the original valve in place, then you'd be OK in winter by leaving your new valve open and reverting to the factory valve. If you disabled the factory valve, do you have any way of preventing freeze damage in the exposed pipe?
If you don't do any cold weather camping, you've made dumping easier !!!
Thanks for sharing
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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