Well I received in my Dwyer gauge the other day and I want to check the vacuum draw in the fire box. Ran into a little problem.
Enviro already made an access hole into the fire box but its 3mm or 0.118". A 1/8" hole is 0.125"
Where do I find a 3mm copper or steel tube that is small enough to fit into the hole to measure?
I've already checked different hardware store to no avail.
Graingers only carried 1/8" tube.
Do I drill the hole out to 1/8" OD?
Inquiring minds like to know hh:
Thanks
Enviro already made an access hole into the fire box but its 3mm or 0.118". A 1/8" hole is 0.125"
Where do I find a 3mm copper or steel tube that is small enough to fit into the hole to measure?
I've already checked different hardware store to no avail.
Graingers only carried 1/8" tube.
Do I drill the hole out to 1/8" OD?
Inquiring minds like to know hh:
Thanks