On 13/09/2020 16:25, Lee Nowell wrote:
Hi,

I have a Primus blowtorch which has the same bottle as shown in this item

https://www.ebay.co.uk/itm/Primus-20...AOSwKtJfWKF 2

I noticed that a number of people are selling empty bottles on eBay so was curious as to why. It seems that they are refillable - although.... some seem to have the word "refillable" on them and some don't even though they look identical. As it happens, mine does not say refillable. Further investigation I found a variety of videos with people filling them themselves (one I saw were from the US) from larger bottles.

I had never heard of this before and assumed when mine was empty I would bin it and buy another one. Has anyone had any experience with this? Is the idea that you fill from a larger one when needed or maybe you have to take it to a supplier who does that for you?

Any thoughts appreciated.

thanks

Lee.



I have the same primus blow lamp but it is blue. I remember melting
copper pennies with it in the mid sixties and I used it to cast a
replacement aluminium roller bracket for my dad's suffolk punch mower
after I ran it into a wall and broke the cast iron original. I very much
doubt it was refilled after that and I retrieved it when we emptied his
house in 2004. Lord knows why I kept it.

Anyway it has a collar with the tare weight stamps on it so I suppose it
was refilled by weight of propane.

It is possible to move propane from one container to another, in this
case the adapter would have to depress the release button at the bottom
of the screw thread.

The problem with diy refills by up ending a big bottle above the empty
is that of over filling. There is no way of controlling such that there
is a gas space above the liquid to allow for thermal expansion and with
these little containers there doesn't appear to be an over pressure
relief like there is on propane bottle but there is a brass 3/8ths plug
with a soft core which may serve this purpose.