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Old 07-09-2019, 12:09 PM   #1
Join Date: Apr 2018
Posts: 67
Water rapidly draining from fill hose. Is it a bad Fresh Water Fill/City Water Valve?

Hello everyone!

I have a 2005 Monaco Signature 45' and I'm having an issue where the water is draining (a LOT!) from the fill hose, in either position of the Fresh Water Fill/City Water valve. I have had to kink the hose and rubberband it tight so that I don't lose all of my fresh water when traveling.

Is this being caused by the Fresh Water Fill/City Water ball valve? If so, does anyone know exactly what kind of valve I need for replacement, so that I don't have to disassemble the entire wet bay to gain access to it to see what I need? It's hidden behind the stainless beauty panel. Any tips on removing the beauty panel to gain access to it? I'm currently at a campground and a little limited. I'll be arriving home in a few days and leaving again a week after that, so if I can get this replaced during this time then that'd be ideal!

Thanks so much for any insight!
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Old 07-09-2019, 12:34 PM   #2
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As I understand you have water coming back out the city water connection. There is typically a inline one way check valve between the city water connection and the city/fill selector valve. Not uncommon for it to fail, allowing water to come out of the city connection.

Temporary workarounds are to externally block it as you have done. I had one go bad and went to Home Depot and bought a cap that would screw onto the city connection. Used it till I had the opprotunity to disassemble and change out the one way check valve.
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Old 07-09-2019, 12:40 PM   #3
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A lot of manufactures use a one way valve right at the city water hose connection. Sometimes it can stick open. Try the blunt end of a pencil or similar to poke the spring loaded valve plunger and maybe it will snap back into position.

Another idea is to place a hose valve on the end of the hose and turn it off.
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Old 07-09-2019, 02:08 PM   #4
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I just installed a manual gate valve. Easy.
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Old 07-09-2019, 10:32 PM   #5
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Thanks for the replies, everyone! My RV has a built-in power hose reel for the city water hose. Everything is hidden behind the stainless beauty panel on my coach. Are there any tips on easily removing this panel, and would the check valve be closer to the connection point of the city water hose reel, or the city/fill selector valve? Thanks again, everyone! I sincerely appreciate the insight.
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Old 07-09-2019, 10:36 PM   #6
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Sounds like a bad check valve as others have stated. Mine is inline right next to the hose reel. About three or four years ago my hose that goes from the gravity fill to the fresh water tank developed a split and that caused water to be sloshed out while driving. Just another thing you may want to check.
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fresh water, valve, water

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