Batch, downstream and X-Jet mixes across 33 surfaces, solved backwards from the strength you want AT the surface — with the 15-disc X-Jet chart and a bucket-test calibration. The exact tool inside Crewplate, running in your browser.
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Pick the surface, pick how you're applying, and the calculator solves the jug math: what to put in the tank or how your downstream ratio lands, including the X-Jet disc chart and a bucket test to calibrate your actual draw. House wash, roof wash, concrete pre-treat — each surface carries its own target range so you're not guessing at percentages.
More free pressure washing tools: Nozzle lab · Hose loss · Tank meter · Mobile rig builder · the full wash bench · all free tools
Free to embed on any site — a supply shop, an association page, a blog post. It stays up to date on its own, and it carries a small credit link back here.
<iframe src="https://getcrewplate.com/embed?trade=wash&tool=chem" width="100%" height="1150" style="border:1px solid #CBD5E1;border-radius:10px" loading="lazy" title="SH mix calculator"></iframe> <p style="font:12px/1.5 system-ui;color:#64748B;margin:6px 0 0">Calculator by <a href="https://getcrewplate.com/free-tools">Crewplate</a> — 26 free trade calculators</p>