Propane Refills
After reading on this site about what a propane tank should weigh when empty/full, I decided I should weigh mine. I had used one tank only with the other one shut off ... The "full" tank weighed in at...
Forum Discussion
StirCrazy wrote:joebedford wrote:
I usually get 20lbs in a 20lb cylinder (by weight). Not 20lbs less 20%.
are you filling an old tank with the old-style valve? If not, there is no way to get that much in it unless the place filling it is breaking the law. in a 20lbs cylinder, which are the same size they have always been, with the new valves and regulations they can only hold 16lbs or 3.89 gal. if a place is telling you they put 20lbs in or charges you for that, they are ripping you off or breaking the law filling the cylinders.
I'm a certified LP refiller and trainer. I've been filling LP tanks of various sizes for over 40 years.
My 20 LP cylinders when filled by opening the "spitter" (Fixed Liquid Level Gauge) until liquid flows weigh out at 20 lbs plus TW. My 30 lb cylinders at 30 lbs plus TW, and my 40 lb cylinder at 40 lbs plus TW. The 16 lbs you claim is incorrect. The LP capacity is 80% of the total water capacity of the cylinder, not 80% of the rated LP weight. A 20 lb rated cylinder holds 4.6 gallons of LP. A 30 lb rated cylinder holds 7 gallons of LP, and a 40 lb cylinder holds 9.4 gallons of LP. Actual total weights are a function of the LP weight plus the cylinder Tare Weight and minor variations due to ambient temperature differences.
