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.
2015 Jay Flight 26 BHS Elite with 320 watts of Solar from AM Solar
2016 Chevy Silverado 2500 Duramax