Forum Discussion
SDcampowneroper
Feb 08, 2020Explorer
Tank capacities are shown in gallons of water, theres a plate on the tank that shows that. Propane capacity is 80% of the water capacity (WC) #. A 38 gallon tank would hold 30.4 gal of propane. Never seen one that big.
Since you post you are taking on about 24 ga. , that is in the range of a 100# tank with a WC of 28. Check your numbers. That is a common size.
There is no air or water in a propane tank. The bleeder screw is a mechanical full level dip tube that will bleed liquid propane at the 80% level, vapor at lower levels. The guage on the tank is a mechanical float guage, that sends a signal to the in coach guage. Trust the on tank guage.
Also consider that if 80% is full, the 1/4, 1/2, 3/4 (full) should more properly read 1/3, 2/3 3/3 Full.
Since you post you are taking on about 24 ga. , that is in the range of a 100# tank with a WC of 28. Check your numbers. That is a common size.
There is no air or water in a propane tank. The bleeder screw is a mechanical full level dip tube that will bleed liquid propane at the 80% level, vapor at lower levels. The guage on the tank is a mechanical float guage, that sends a signal to the in coach guage. Trust the on tank guage.
Also consider that if 80% is full, the 1/4, 1/2, 3/4 (full) should more properly read 1/3, 2/3 3/3 Full.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,322 PostsLatest Activity: Oct 09, 2025