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Old 05-27-2015, 12:16 PM   #1
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Low Point Drain

I own a 2014 Newmar Ventana 40. I attempted to drain my fresh water tank but could not get the water to drain. I moved the lever in both directions and nothing. I have done this many times but never with this problem. I could see the water mark on the tank but I added water anyway. The inside gauge read 1/2 tank which was consistent with the water mark on the outside of the tank. The pump works when I turn it on also indicating that water is in the tank. Any idea where I might start looking for the problem?


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Old 05-27-2015, 12:27 PM   #2
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Need some more details to help you out...like first of all...what lever are you talking about? A pic might help.

Including your make, model and year is also helpful (see mine below)...

97 Gulfstream SunVoyager
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Old 05-27-2015, 12:33 PM   #3
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I'm not at the coach right now but the lever is at the base of the fresh water tank. It turns left and right (open and close) When I open the level (valve), the water drain under the coach.
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Old 05-27-2015, 01:17 PM   #4
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Mine has vents for the fresh water on the opposite side of the coach for the low water drains. Might try just opening the kitchen or bath faucet to vent it.
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Old 05-27-2015, 03:07 PM   #5
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low point drains are for the lines, not the holding tank. you should have a tank drain located on the tank or a hose connected to the tank.
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Old 05-27-2015, 03:12 PM   #6
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Had an issue with insects building a nest in the drain line after the valve on mine a couple of times. Cleared the nest and it drains fine.
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Old 05-28-2015, 08:49 AM   #7
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Thanks to all who sent me tips in an effort to resolve this problem. I filled the tank until it started to overflow. I thought maybe there was an air pocket. I opened all the faucets inside and outside, still no draining. I checked for a nest in the drain line and it was clear. As for the low point drain valve, this is the valve that I was told to use to drain the tank. I have used this valve since I took delivery last year. I owned a Tiffin prior to purchasing a Newmar. Any more suggestions before I throw the wrench in and head to the dealer???
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Old 05-28-2015, 02:32 PM   #8
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One of my valves (between the tank and the pump) tends to stick, and when it does the lever will move, but the valve internals don't. it sounds like that might be your problem: the lever has come loose and is not actually turning the internal ball valve?

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