Freshwater Overflow questions
Because I was losing about 1/3 of my freshwater out of the overflow tubes while traveling, I added valves on the overflow tubes. I know this is a common issue/solution, but I have some questions.
How I understand it: I am supposed to fill the fresh water tank and close the valves. Make sure to open the valves when I arrive at camp. This is supposed to keep me from losing a lot of water while driving. The problem is that once I get to camp and level, when I open the valves, I still lose a ton of water. It just seems to siphon out.
This last weekend, I left the valves closed while I camped (I DO have a vent line connected that goes from the gravity water fill to the tanks). A number of times, I cracked open the overflow valves to see if using water with the valves closed created a vacuum in the tanks. I figured that if it was creating a vacuum, instead of water coming out of the tubes when I opened the valves, there would be an inrush of air. This never happened. Even after using water all weekend and taking two showers, whenever I opened the overflow valves, water would still come out.
My question is do I really need to have the valves open while at camp or will the vent line from the gravity fill to the tanks keep the tanks vented. Do I only need to open the valves while filling the tanks? I don't want to damage anything, but also want to be able to use all of my water. My old 2000 Jayco didn't have this problem... Thanks.
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2018.5 Lance 2185 with 320 watts of Solar
2016 Chevy Silverado 2500 Duramax
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