so you just have a mix in a 25l drum and suck from that just to put the chems down fast, then rinse off?
How do you feed it after the pump? doesnt that mean you have to tap into the high pressure hose?
i was thinking more of something like the wet blast nozzle, and stick the pickup hose in a drum of premix hypo?
yeah, i found its easier to use a sprayer on decks/patios then you can use a good strong mix