
House Wash — Vinyl Siding (Soft Wash)
Mixing Ratio
1 part SH 12.5% : 3–4 parts water
by Official Starter
Real-world chemical mixing recipes from working pressure washing contractors. Find the exact ratio, dwell time, and process for the job in front of you.

Mixing Ratio
1 part SH 12.5% : 3–4 parts water
by Official Starter

Mixing Ratio
1:1 SH to water (50/50 baseline) — ARMA standard
by Official Starter

Mixing Ratio
1:1 SH to water (50/50 baseline) — ARMA standard
by Official Starter

Mixing Ratio
1 part SH 12.5% : 3–4 parts water
by Official Starter

Mixing Ratio
8 oz oxalic acid per gallon of warm water
by Official Starter

Mixing Ratio
Cleaner: 6–8 oz sodium percarbonate per gallon warm water. Brightener: 8 oz oxalic acid per gallon
by Official Starter

Mixing Ratio
4:1 to 10:1 water to degreaser
by Official Starter

Mixing Ratio
1:10 light cleaning, 1:5 medium buildup, up to 1:1 direct spray for heavy grease
by Deja W. · Dallas, TX

Mixing Ratio
Commercial: 1:1 to 1:12 water. Phosphoric: 1 part acid to 9 parts water
by Official Starter

Mixing Ratio
Hot water: 4:1 heavy oil, 10:1 general. Cold water: 1:1 heavy oil, 4:1–5:1 general
by Marcus T. · Atlanta, GA

Mixing Ratio
10:1 to 20:1 water to product (standard). 5:1 for heavily oxidized gutters
by Official Starter

Mixing Ratio
1–2% SH on surface, held wet 5–10 minutes
by Official Starter
Mixing Ratio
Per product label — most graffiti removers are ready-to-use or lightly diluted
by Official Starter
Mixing Ratio
Vinegar: 1:1 water to white vinegar. SH option: 0.5–1% SH on surface
by Official Starter
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