The article on ozonated water in Bob Beck's 2002 booklet The First Aid Kit Of The Future contains an apparent contradiction between the illustration and the written recommendation. The former shows a relatively wide and shallow basin-like vessel. The latter calls for tall, narrow vessel. Beck recommends a glass vessel 2.5 feet tall and 3 or less inches wide. I used a piece of glass tubing with a rubber stopper to make such a vessel. But the rubber stopper must seal very tightly, or the pressure head will pop it out. A suitable piece of glass tubing costs less than $10.
Matthew
