I may be not the best person to comment on this but this is what I
I put lots of paper on all surfaces that I was going to use. Removed
the outer case after making sure that it was not still plugged in to
the power outlet. You may have to unplug the fan.
Next put on lots of safety gear, extra long gloves, face mask and
Removed screws holding the sight tube and removed the top connection
of the sight tube from the cell.
Filled a bucket with some water and placed it below the edge of the
machine, then lowered the open end of the sight tube in to the bucket
and let the contents drain out. I thought that putting water in to
the bucket first would mean that from the start the contents were
I then flushed the cell 3 or 4 times with clean water and then
replaced all the sight and pressure tubes.
Before refilling I checked that all joints were sound and did not
look like they would leak.
I then mixed the KOH (Potassium Hydroxide) with the correct amount
of water and filled up very carefully.
Gave the machine a good wipe down with lots of water to remove any
traces of spills if any were made. You could use vinegar to
neutralize the alkaline but don’t know how much you should use.
it on and checked for gas leaks. Then left it running with the torch
turned off and make sure that it did not regas for a few minutes.
Any leaks and the machine will keep switching on to maintain
Not sure if you need to open up the cell and what you would clean if