Well, from an initial weekend warrior, I have been schooled just from reading the initial posting and the numerous replies to it. I've done a lot of reading as well and have come to realize that there is the theorical and the actual. I will always read the theorical for guidance, but immediately seek out the experienced for safety and practicalilty. I don't want to leave corporate just to kill myself trying to make a living. So I value all discourse regarding this profession.
I just purchased 12.5% bleach after reading numerous materials discouraging it's usage. Yet when I would go to the chemical distributor they had plenty of it and said that the pressurers swear by it. I have have protective gear, rainsuit, goggles, rubber clubs and face mask. I water down the lawn before and after usage. I'm now testing oxalic acid. I'm told if you learn the chemicals you will save money, time and wear and tear on equipment.