Chemical injector

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A cheap way to do roof cleaning?

Very few people clean roofs with an x-jet, but some do. The reason why is that you can only go so strong with an x-jet, and roofs generally require a pretty strong mix. 12V pumps are how most people start cleaning roofs. You can buy a 5 GPM 12V pump at an ag store, or online pressure washing vendor, for $150 or less. You can buy 300’ of 1/2" polybraid hose for $115 (how much you want to use is up to you, 200’ is common, but some people go up to 300’). You can make a gun out of a ball valve …