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Old 06-27-2009, 06:23 PM   #1
Chris and Sara
 
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propane gas switch over valve

Guys, on my 09 TT I have a valve that sits between the LP gas tanks. It has an arrow that points to one tank or the other. After using what I thought to be a lot of propane, I took the tank to the fill station today. It only took 3 gallons. I thought with the switch in place, it would only pull gas from whatever tank the arrow was pointing to, am I missing something here?
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Old 06-27-2009, 08:24 PM   #2
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You probably didn't use as much propane as you thought you did. The real propane usage comes in cold weather when the furnance runs. Your right about the arrow pointing to the tank that is being used. Your other bottle is probably still full.
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Old 06-27-2009, 11:56 PM   #3
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There are some regulators that will automatically pull gas from the other tank if one goes empty. I believe that is what we have in our Cherokee TT. With this type you just aim the arrow down and turn both tanks on, that way it can pull gas from either tank, or you can aim the arrow to either tank, that way you can pull one tank out for refill while the other one still running.
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Old 06-28-2009, 09:37 AM   #4
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You have an auto swtichover regulator. You point the arrow at the cylinder you want to be the primary cylinder. The regulator draws propane fom that cylinder until it's empty then it automatically switches to the other cylinder. When the primary cylinder becomes empty the regulator also sets a red flag to let you know that the primary cylinder is empty. At that point you switch the arrow to the other cylinder and remove the empty one and have it filled.
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Old 06-28-2009, 09:53 AM   #5
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Quote:
Originally Posted by Bama Rambler View Post
You have an auto swtichover regulator. You point the arrow at the cylinder you want to be the primary cylinder. The regulator draws propane fom that cylinder until it's empty then it automatically switches to the other cylinder. When the primary cylinder becomes empty the regulator also sets a red flag to let you know that the primary cylinder is empty. At that point you switch the arrow to the other cylinder and remove the empty one and have it filled.
I thought the arrow pointing down toward the gas line that goes into the TT meant that gas will come from either tank. How does it automatically change over if the arrow is pointing to one tank? Bama, should the arrow always point at one of the tanks then.
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Old 06-28-2009, 08:28 PM   #6
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You're right, some regulators will draw from both cylinders if the arrow is pointed down. I don't recommend running this way simply because you're emptying both cylinders and when you run out you're completely out.
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Old 06-28-2009, 09:32 PM   #7
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Quote:
Originally Posted by Bama Rambler View Post
You're right, some regulators will draw from both cylinders if the arrow is pointed down. I don't recommend running this way simply because you're emptying both cylinders and when you run out you're completely out.
That makes sense. I'll run one tank at a time from now on. Thanks.
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Old 06-28-2009, 09:42 PM   #8
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Also dont open both valves that way you are sure you have a full one when the other runs out
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Old 06-28-2009, 10:30 PM   #9
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This makes sense, thanks guys!
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Old 06-28-2009, 10:54 PM   #10
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I have always only opened one valve when setting up camp and when I'm heading out, I close it. Are most other folks leaving the gas valves open at the tank all the time and relying on control knobs?
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