JimK-NY wrote:
A drop in temperature would decrease the propane pressure. The drop is insignificant. During my testing, the temperature dropped from about 60 F to about 50F. Pressure of a gas is directly related to absolute temperature in degrees Kelvin. 60 degrees F is about 493 degrees Kelvin. 50 degrees F is about 487 degrees Kelvin. So the drop in temperature and the drop in pressure were insufficient at only a bit over 1%.
Not to get tooooo far into the weeds, but here’s a temp vs pressure chart:
https://www.propanewarehouse.com/helpful-information/lp-gas-properties/
3 tons