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I have bought one of these:https://www.benzsoftwash.com/products/spray-nozzlesJust screw on to the top of a WFP, connect and spray. I have a small pump trolley and a few 20L drums. I premix into the drums and pump at 8-9 lpm directly to fsg, render with very little drift. Spraying the premix from 1-2 feet away is also more accurate, so it ends up where it needs to be with less waste.Andy.
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