Daco-San II
Inhibited 13% acid bowl cleaner — ready-to-use
Daco-San II
Daco-San II is a 13% inhibited acid bowl cleaner formulated to dissolve hard-water scale, rust stains, and lime deposits in toilet bowls and urinals — fast — without etching porcelain. Corrosion inhibitors protect chrome and stainless fittings during routine use.
What makes it different
- Strong enough for set-in stains. 13% acid blend cuts through hard-water buildup that quat cleaners and detergents cannot touch.
- Inhibited for fixture safety. Corrosion inhibitors let it sit on chrome trim, flush valves, and stainless without pitting during normal contact times.
- Thickened cling. Coats the bowl above the waterline so it works on the stain rather than running straight into the trap.
- Ready to use. No dilution, no mixing errors — pour, swab, flush.
What it isn't for
Not for marble, terrazzo, or any acid-sensitive natural stone. Not for galvanized or aluminum surfaces. Never mix with bleach or other chlorinated cleaners — releases toxic chlorine gas.
Packaging
One-gallon plastic jugs, packed four per case. Backed by Damon's guarantee and over 70 years of service.
What it isn't
Not for marble, terrazzo, or other acid-sensitive stone. Not for galvanized or aluminum surfaces. Never mix with bleach or chlorinated cleaners — releases toxic chlorine gas.
Surface compatibility
Tested at label concentration on common facility surfaces. For uncommon substrates, request a compatibility test from your Damon rep.
Surface compatibility
Application directions
Step-by-step instructions. Read all steps and any caution-flagged steps in full before starting.
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1
Flush the bowl
Flush to lower the water level below the rim so the cleaner can contact the soiled area directly.
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2
Apply around the rim
Pour 2-4 oz around the inside of the bowl, letting the cleaner coat the staining and run down the sides.
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3
Swab and dwell
Swab with a bowl mop, paying attention to under the rim. Let it dwell 2-5 minutes on heavy mineral or rust stains.
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4
Flush thoroughly
Flush the toilet two to three times to fully clear residual acid from the trap and bowl surfaces.
Documentation
Audit‑ready PDFs. Use these for Joint Commission / CMS / OSHA compliance.
OSHA HazCom · DMN0324
Use directions, surface compatibility
