Community Forums

Naumann · 04-26-2012, 02:17 PM

can someone explain what TW,WC&DT mean on a propane tank? thanks

Mr_D · 04-26-2012, 02:23 PM

TW is Tare Weight, weight of the empty tank
WC is the Water Capacity usually in lbs.
DT is the Dip Tube and the number is the length of the tube from the valve.

Gary RVRoamer · 04-27-2012, 07:12 AM

Trivia...
To elaborate a bit, WC is used to measure tank capacity because water is not compressible, whereas LP gas is. Thus WC is a reliable and repeatable measure of capacity, whereas LP capacity would vary depending on how much pressure is applied when pumping it in.

TW (Tare Weight) comes from the tax (known as a "tare") on fuel which used to be common in interstate commerce. The fuel is taxed based on weight, but not the container.

jablair · 04-27-2012, 07:54 AM

The propane capacity, in pounds, is .42 times the WC or water capacity. Hence a tank of WC of 71.4# is a 30# propane tank. Propane is 4.22# per gallon, meaning a 30# tank holds 7.1 gallons of propane.

bassoneman · 04-27-2012, 07:58 PM

Ok here is a Dumb Question.. Where do most of you get your propane.? ( in other words I don't know where to get it)

Gary RVRoamer · 04-28-2012, 09:46 AM

Some campgrounds have propane stations. That is usually the most convenient but also the most expensive. And every town has propane filling stations - usually several of them. If you have portable tanks it is easy. If a fixed tank in a motorhome, call around and ask about accessibility for a rig your size. Sometimes the fixed tank on the rv is in a spot that is hard to get near the dispenser pump.

cutrell01 · 04-28-2012, 12:31 PM

Flying J truck stops have propane as you pull into the RV gas pumps. Sometimes on the left side of your RV sometimes on the left side of your TV. Our propane is on the passenger side. If you belong to their frequent fueler program(which is free to join), you get 10 cents per gallon off. Pilot owns Flying J now and they may also have propane-don't know.