I have never found that tsp leaves a white residue - on the sides of boxes they commonly tell you to put 1 quart of bleach and 1 cup of tsp to 3 quarts of water. I think that's just plain crazy - I have always just put 1/4 of tsp to one gallon of water then added a quart of bleach for 5 quarts total. That's been my mainstay, and where I start from when I want to tackle something. By adding 1/16 cup of tergitol to that gallon, has allowed me to cut down the bleach to one pint. And so now I have a mixture that I can put a siphon directly into a 6% bleach bottle with my added ingredients through my downstreamer which is 10:1. I was pressure washing a house, and it even knocked off the failing poly coating on the guy's front threshold!
But back to your question - never noticed any residue on windows, I don't think the nonylphenol would allow it - and I haven't killed any vegetation, just rinse the vegetation before and after.
sodium hypochlorite & surfactants
in Chemicals & Safety
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Do you still use these chemicals