John… Dear John
What a relief to find someone else who has used transformer oil and
has not died of the ‘Dreaded lergy’
In my piece which really put the cat among the pigeons and did state
that there were different types of this oil.
Just a matter of knowing your oils, the one we used from burnt out
transformers was a mineral oil contaminated with carbon which though
a bit messy was pretty harmless
The other types ( synthetic ) are contaminated with the dreaded PCB’s
and obviously very toxic.
I have been intending to get in touch with an expert from one of the
oil companies re this to get some tech info re this subject, will let
the list know if I can get around to doing this.
I should add that I and my various companions in ‘grime’ have never
had any trouble cleaning the oil from agate etc.
Re the pump system of feeding water to a jade saw, it obviously
works, however when we considered the options we were concerned about
saw sludge getting into the pump so have always used a gravity feed
from a tank with a ball cock . A gravity feed has advantages in that
your water feed remains constant at whatever setting you make . We
also use this system as a feed to our jade carving benches.
Good luck everybody… Keith Torckler