So I looked at the msds for gutter zap. It's basically Sodium Hydroxide and Butyl. I know where I can buy both of these chems in raw form. Is there any reason I shouldn't mix them to the percentage shown on the Gutter Zap msds and make allowances for downstreaming with my 15:1 injector? If my math is right, it should be 2.5 gal butyl, 1.5 gal Sodium Hydroxide, and 1 gal water. This would make a 5 gal mixture at a cost to me of 30 bucks. I could downstream it, and it would hit the gutters at the same ratio as if I were to xjet gutter zap straight onto the gutter. The percentages on the msds were butyl 9%, SH 5%. I know butyl is a carcinogen. shouldn't I be fine with eye protection, gloves, and respirator?