Mix charts assume one SH strength and one tank size. Your SH might be 10% from the pool store or 12.5% from the supplier, and your batch might be 5 gallons or 200. This tool does the math for whatever you actually have.
What the Soft Wash Chemical Mix Calculator does
- Batch Mix: SH, water, and surfactant amounts for any tank size and target strength
- Downstream tab: what your injector ratio really delivers at the surface
- Mix ratios written the way pros say them, like 1 to 11.5
- Job Planner: how much SH each job uses and what it costs you
- Inventory tab so you know when to reorder
- Printable Crew Mix Card with your standard mixes for house, roof, and concrete
- Safety tab with mixing order and handling reminders
What's inside
8 tabs: Start Here, Prices & Strengths, Batch Mix, Downstream, Job Planner, Crew Mix Card, Inventory, Safety.
Who it's for
Anyone soft washing houses, roofs, or concrete, from first-season washers to crews that need everyone mixing the same way.
What you get
Two spreadsheet files (.xlsx): one filled with examples so you can see exactly how it works, and a blank copy ready for your business. For Microsoft Excel and Google Sheets. No macros, no subscription.
The formulas are locked, so a stray keystroke can't break them. You only type in the yellow cells.
Always follow the label and safety data sheet for every chemical you use. This tool does the math; it doesn't replace safe handling.
Questions
Does it work with pool store bleach?
Yes. Enter the strength on the label and every mix adjusts.
Does it handle downstream injectors?
Yes. Enter your injector ratio and it shows the strength at the surface.
Is there a blank version?
Yes. Every download has two files: one filled with examples so you can see how everything works, and a blank copy ready for your own business. Your rates and settings come filled in as a starting point, so change them to match yours.
Can I change the formulas?
The gray formula cells are locked so they can't be erased by accident. If you really want to change one, open Review in Excel and choose Unprotect Sheet. There's no password.
Does it work in Google Sheets?
Yes. Upload the file to Google Drive and open it with Google Sheets. Everything works the same.
How do Free Lifetime Updates work?
Whenever we release a new version, you can download it free from your account, forever. We'll email you when there's something new.
