Re: PROPANE TANK GAUGE ACCURACY
1. What is a "bleeder" valve? Same question, what's a "spitter" valve?
A couple notes on looking into the specs:
1. There is an auto-stop valve in the fill valve to prevent over-filling the tank. The label beneath this valve says to stop filling if liquid is seen on the outage valve (not mist) and have the auto-stop valve serviced. Sounds like something some of you don't have on your older models?
2. The sight glass is made by Rochester Gages, Inc. They make eltronic remote sensors too. I would expect it to be fairly accurate, and so I have elected to contact Manchester Tanks about the possible warranty issue (three years coverage on defective parts). Let's hope it's that and not a defective auto-stop valve that prevents the tank from being filled to capacity. I'll let you know what I find out.
Bleeder valve and spitter are slang terms for the little screw valve that discharges liquid propane when the tank is 80% full.
The auto stop "outage" valve is doing the same thing to prevent an over fill condition. Auto stop has been around for years, but was not widely utilized in my time as a plant operator.
I would almost empty the tank and fill it using the auto fill. That volume should represent close to 80% of the water capacity of the tank. That water capacity should be stamped on the tank as WC and is in pounds. A gallon of propane weighs somewhere in the area of 6 lbs. (Verify on google!)
At 6lbs per gallon your 40lb tank at 80% should take 40*0.80/6 or just over 5 gallons to fill.
As noted in my earlier post those mechanical gauges are rarely accurate. Even the turbulence created during filling throws them off until the liquid settles to a smooth level. The tank must be perfectly level in both directions for the best reading.
"Talk is cheap. Whiskey costs money."