New lpg tank

Take it to a propane dealer.

Copy/Paste from HERE

Proper Purging of a Propane Tank
Posted on 7th Jun 2019
Proper Purging of a Propane Tank is very Important!
DOT Cylinder Purging Procedure:
Exhaust to atmosphere any air pressure in the container*
Pressurize the cylinder to 15 psig with propane vapor. Never use liquid propane.
Exhaust vapor to atmosphere
Repeat four more times
SAFETY WARNING: The purging procedure should be done by a qualified trained person. Exhausting propane vapor incorrectly could result in ignition of exhausted propane fumes resulting in burn injury or death!

Why is purging a new propane tank so important?

If the natural volume of air inside your tank is not removed prior to the 1st filling, these problems will result:
During the warmer months of the year your tank could experience excessive and false container pressures. This could cause the safety relief valve to open, blowing off (discharging) the excessive pressure.
Any air mixture in the vapor space of the tank will be carried to the appliance burner. This could result in unwanted service calls from pilot light outage or improper burner flame function.
However, if the atmospheric air inside your new tank is properly purged:

The storage tank will fill faster, your appliances will function more consistently, pressure relief valves on your tank will be less likely to discharge.
WARNING! Never Purge with Liquid Propane!

Purging with liquid propane causes the liquid propane being pumped into your tank to flash into vapor, chilling the container and condensing any moisture vapor on the walls of the tank where it remains while the pressure is being blown down. Additionally, less than 50% or as little as 25% of the air will be removed if the purging is done with liquid propane.


:):)

I got it purged from the dealer, thank you for your responses!!

Never did the purge even I had valves replaced by propane dealer.
When you are filling the propane with bleeder open, the liquid is pushing about 80% of vapor out.
Propane is heavier than air, so the air is 1st to escape the cylinder with bleeder on top.

As long as you tell the propane place that 'it's a new tank and needs to be purged', they should know what to do.. If they don't, then go someplace else.

I don't think it's anything special, but the put those stickers on new cylinders for a reason..

It's been awhile since I got a new cylinder, and I'm old, so don't recall all the details, but the places I took it to did whatever they needed to do and the cylinder worked fine after that.

Good luck! Mitch

This is kind of interesting to me. I never knew purging was required, but I also have never bought an empty new propane tank.

jimh425 wrote:
This is kind of interesting to me. I never knew purging was required, but I also have never bought an empty new propane tank.

I also never changed tire air from summer to winter blend.

I get my New/used tanks by getting a propane exchange tank once every few years.....I know, I'm bad but..........

Kayteg1 wrote:

jimh425 wrote:
This is kind of interesting to me. I never knew purging was required, but I also have never bought an empty new propane tank.

I also never changed tire air from summer to winter blend.

!!!! Best post of the week!
Thank you for the levity!

To the OP, what does purging have to do with having a hole in it? Not that I think a new bottle is likely to have a hole, but I can’t make that connection there.