Forum Discussion
gkainz
Nov 11, 2019Explorer
I've not heard any good recommendations for pressure gauges to accomplish what you want to see. Propane cylinders will keep up the pressure just about all the way to "almost empty" ... pressure doesn't vary much with the LP level.
2 methods that work for many of us are (singularly or combination of both):
1. Auto change over valve - standard (?) in nearly all the RVs now, I think. I use a grease pencil on the tanks to indicate fill date and selection date when I put a full cylinder in, and the date I point the change over valve handle at the selected cylinder. I then check it with some regularity (daily or whenever I think about it?) and note when the flag goes red, switch the regulator handle to the other cylinder, mark the date and know I now need to fill the now empty cylinder sometime within or well before the "usage window" that the first bottle gave me.
2. Pour a cup of hot water down the side of the cylinder and observe the frost line (or feel for the cold/hot demarcation line with my hand) to get an idea of how much LP remaining in that cylinder.
2 methods that work for many of us are (singularly or combination of both):
1. Auto change over valve - standard (?) in nearly all the RVs now, I think. I use a grease pencil on the tanks to indicate fill date and selection date when I put a full cylinder in, and the date I point the change over valve handle at the selected cylinder. I then check it with some regularity (daily or whenever I think about it?) and note when the flag goes red, switch the regulator handle to the other cylinder, mark the date and know I now need to fill the now empty cylinder sometime within or well before the "usage window" that the first bottle gave me.
2. Pour a cup of hot water down the side of the cylinder and observe the frost line (or feel for the cold/hot demarcation line with my hand) to get an idea of how much LP remaining in that cylinder.
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