copper pieces ?

[ninja_geezer]

is there any particular shape.size and amount of copper pieces i should put in the airstill ? i have some 22mm copper pipe in the garage i could cut /flatten .
and how would i clean/prepare it before use.

[Easydrinker]

Your 22mm copper sounds ideal.
I cut it to 2-3cm lengths, stand the pieces upright on a chunk of concrete and smack them with a big hammer to remove sharp edges.
For cleaning, I advise Citric acid.
I buy a couple of kilos at a time from that auction site.
The pieces come out of a strip wash pretty clean, but quite dirty from a spirit run.
Use a fairly large mug full
Mash will be along soon advising you to look for REAL copper coins
HTH.

Robert.

[ninja_geezer]

Your 22mm copper sounds ideal.
I cut it to 2-3cm lengths, stand the pieces upright on a chunk of concrete and smack them with a big hammer to remove sharp edges.
For cleaning, I advise Citric acid.
I buy a couple of kilos at a time from that auction site.
The pieces come out of a strip wash pretty clean, but quite dirty from a spirit run.
Use a fairly large mug full
Mash will be along soon advising you to look for REAL copper coins
HTH.

Robert.

Thanks Robert top advice,not got any coins though i belive our 1p 2p coins have to be pre 1992 to have enough copper to of use.

[Mash]

... Or flatten some of the pieces.

[ninja_geezer]

... Or flatten some of the pieces.

i think i have some copper washers in the garage somewhere ,i guess they will act just as coins ?

[Mash]

Sure would. Flat is the important bit.

[PieOPah]

Why is flat important?

I have about 8 or 9 pieces of copper tube which I cut off a pipe (about 5mm thick). Other than cut them off, I haven't done anything. Seem to have done the job okay!

[ninja_geezer]

Sure would. Flat is the important bit.

Is the flat to help stop the boil over mash ?

[Mash]

Sure is.

The thin film of water under the flat boils quicker and then gases. The gas release causes the copper to move or bounce. This movement stops superheating which is the major cause of boilovers.

[Easydrinker]

Mash and I differ in opinion here.
I believe lengths of tube work just as well.
A length of tube laying flat has the same effect, IMHO.

Robert

[PieOPah]

I think I may cover all bases and attention half and leave the other half as potential engagement rings...

[Easydrinker]

You Old Romantic You!

Robert.

[Mash]

Pie,
I have both - but don't tell Robert

[Easydrinker]

LOL

Robert.

[ninja_geezer]

I think I may cover all bases and attention half and leave the other half as potential engagement rings...

Lol all bases covered