Mac Coupler and refilling question

I would suggest that it is not a good idea to cool and fill as you are reducing the natural expansion space in the container.

This could lead to leaks or worse as the container heats up in the midday sun.

Cheers Rod

Not game to overfill if you pop the safety plug particularly if the canister is in your car you could have big problems including insurance
also i'm not sure what the safety is set, at you have overfilled by about 5% should be ok as they would have a safety margin just my thoughts
Cheers Kev

Warfer
How much did your Mac-coupler cost you???
Obviously you purchased off Ebay but A$ --???

Just fill as per instructions.

chill in freezer for 20mins, then allow to equalise on cylinder for about a minute, you can hear when gas stops transferring.

I used to weigh them, but dont bother now, you dont have any control to overfill or underfill anyway, it will vary by 50grams or so, depends on ambient temp of cylinder etc.

So chill n fill n enjoy the cheap cheap gas

Ron