Propane cylinder DO have liquid level indicators/........that is via the 'bleed valve'
Bleed valve is part of the Service Valve (the non OPD ones AND the OPD ones have it)
When filling the 'bleed valve' should be cracked OPEN until LIQUID spews out. Then filling is secured and bleed valve closed
OP........
When you had that cylinder filled did the attendant crack open the bleed valve?
NO....
Did attendant fill cylinder via a scale?
NO....
Did attendant fill via gallons?
YES...
The OPD 'should have' (BIG SHOULD HAVE) prevented filling of cylinder beyond 80% capacity BUT it didn't. It is stuck OPEN and it's function should be tested next time filled.
