Propane tanks on 5th wheel

2oldman wrote:

High5er wrote:
Fuel weight changes daily, trust me.

Ok.. I trust you. But I don't know why I need to.

Thank you for your trust.:D Here is a straight-forward read on propane: http://www.propane101.com/propanevolumecorrection.htm

I'm not really trying to prove anybody wrong here. Just want people to understand weight is a factor when measuring fuels.:W

Get my tanks filled at local LP dealer that puts them on a scale. I take them out of the 5er and up to LP dealer to fill. New coach--tanks filled. Old coach not filled by dealer.

Never thought of how the trucks fill or know when full on tanks at homes. Good point.

FWIW, there is a number stamped into the collar of tank that has tare weight. If you have a scale at home, you can place tank on it to see how much it weighs above the tare weight number and that will tell you within reason how much you got left. OR just pour hot water alongside of tank to see where frost line/fuel level is.

High5er wrote:
Fuel weight changes daily, trust me.

Ok.. I trust you. But I don't know why I need to.

Temperature does not affect mass... only volume.

My cylinders do seem to take on more volume when the bleed screw is used aggressively.

Mine came filled when I bought my 5er couple years ago. How would you do a PDI if they were empty?

At my old station in VA they did it by gallons. They had a scale (old and rusted), and when I asked the guy if he was going to weigh the bottles, he just laughed and said they haven't weighed bottles in years.

My new station in WA charges by liquid gallon also.

2oldman wrote:

High5er wrote:
Those old school sliding weight scales also work in all climates where moderns scales would freeze up in places like Minnesota. Just MHO :)

The old school comment implied that dispensing by volume was old school. It's on page 1. I'm pretty sure meters came along way after scales.

Of course I could have completely misunderstood his comment.

Fuel weight changes daily, trust me. I did this stuff for living. Maybe this will help: :) https://www.orangecoat.com/the-truth-about-filling-20-lb-bbq-grill-propane-tanks

High5er wrote:
Those old school sliding weight scales also work in all climates where moderns scales would freeze up in places like Minnesota. Just MHO :)

The old school comment implied that dispensing by volume was old school. It's on page 1. I'm pretty sure meters came along way after scales.

Of course I could have completely misunderstood his comment.

2oldman wrote:

bpounds wrote:
. They use a meter that measures gallons. And the bleed valve tells them when liquid has reached the top. Old school? I still by gas by the gallon.

I don't understand the old school comment either. The last time I got filled by weight the guy used a scale that looked like something from the 1800s.

I believe that fuel changes weight depending on the temperature. Even aircraft are fueled by weight, (not gallons). Those old school sliding weight scales also work in all climates where moderns scales would freeze up in places like Minnesota. Just MHO :)

bpounds wrote:
. They use a meter that measures gallons. And the bleed valve tells them when liquid has reached the top. Old school? I still by gas by the gallon.

I don't understand the old school comment either. The last time I got filled by weight the guy used a scale that looked like something from the 1800s.