Perhaps better than whining about others would be to use your head...just maybe you could do one day of 18/6 which would not send them into flower and would allow you to do the burn with the lights off...like Mr. Pirate suggests.
Or try it with the lights on and tell us how it goes.
Your grow, your choice.
Sup Jack !!
Ya know.......I couldn't tell ya man. I have never sprayed sm90 before.
IF the sulfer peopel say not to after using the SM90..........then I would'nt. But Like you and getting desperate with the PM.......I would spray with plain water to try and wash it off and probably burn the sulfer anyway.
Keep in mind......If you spray with high PH water......like 9.0.......you'll kill PM spores. Even with plain water.
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haha pirate, you are one cool mother f'r .....
By you taking the time out of your day to not only create this burner from scratch, and then to write this aweseome tutorial, i must admit that you are indeed one cool muh fuckah. i personally believe it is going to cause a sudden influx of excellent karma in your life ....you are going to help many...
keep on smooth sailin my friend... with a brain like yours, you are bound to find that hidden treasure...
alright im done ,
LW