Pressure Washing Notes on iPhone: PSI Settings, Chemical Mix & Soft Wash Protocols
How pressure washing technicians use Nemos to track surface-specific PSI settings, detergent formulation notes, soft wash protocols, and customer property observations.
Note-Taking for Pressure Washing Technicians
Pressure washing combines surface science with chemical knowledge. The wrong pressure on a soft wood surface causes irreversible fiber damage; the wrong detergent on a painted surface strips the coating. Building a technical knowledge base of surface-specific approaches — documented from your own results — makes your service consistently better.
Nemos organizes your technical reference and customer-specific notes.
What Pressure Washing Technicians Track
Surface and pressure notes: - PSI and GPM notes by surface type (concrete: 3000+ PSI, wood decking: 500-1200 PSI, painted surfaces: 1500 PSI max) - Nozzle size selection notes by surface and application (0°, 15°, 25°, 40° fan tips by use) - Soft wash approach notes for surfaces that can't tolerate pressure (roofs, painted wood, screens) - Distance from surface notes for specific applications
Chemical and dwell time: - Detergent selection notes by surface and stain type (degreaser vs. house wash mix vs. concrete cleaner vs. roof treatment) - Dwell time observations per chemical and ambient temperature - Dilution ratio notes by application - Post-rinse requirement notes by chemical type
Roof cleaning: - Soft wash approach notes for asphalt shingles vs. tile vs. metal - Sodium hypochlorite concentration and surfactant mix notes - Application and rinse approach for specific roof pitches - Moss and algae treatment dwell time observations
Customer property notes: - Surface condition at start (existing staining, paint condition, prior damage) - Sensitive area notes (painted surfaces, plants to protect, drains to cover) - Access and water source notes
Business operations: - Production rate notes by job type (sq ft per hour by surface) - Estimate calibration notes from completed jobs
Soft Wash vs. Pressure: The Key Decision
The biggest technical error in pressure washing is applying too much pressure to soft surfaces. Nemos notes on which surfaces required soft wash approach — and what mix worked — prevent repeat damage errors and demonstrate the technical knowledge that distinguishes professional from amateur work.
FAQ
What chemical dwell time notes matter most? Temperature-adjusted dwell times for roof treatments and organic stain removers. Chemicals work faster in heat and slower in cold; notes calibrate your timing to your climate and season.
Should I note surface condition observations at job start? Yes — pre-existing damage, staining that won't respond to cleaning, or delicate surfaces that required special handling. This protects you when a customer questions results or pre-existing conditions.
How do I track roof treatment results? A note per job with product mix, dwell time, rinse approach, and visual result. Roof cleaning results often aren't fully apparent for weeks; follow-up notes on how treatments performed build long-term calibration.
What plant protection notes prevent damage claims? Which plants required covering or pre-wetting, what chemical concentration was used nearby, and any observations about chemical contact. Plant damage claims are common; documented protective measures reduce liability.
Is Nemos useful for estimating? Square footage per hour by surface type and staining severity, chemical cost per job type, and equipment setup time — calibrated from actual jobs — improve your flat-rate and hourly estimates.
How do I organize by surface type? Tags: `#concrete`, `#wood-deck`, `#vinyl-siding`, `#roof`, `#brick`, `#fence`. Cross-reference with chemical approach and pressure setting.
Related Reading
- Painting Contractor Notes on iPhone
- Window Cleaner Notes on iPhone
- Pool Technician Notes on iPhone
- Home Service Trades iPhone Workflow
Sources
- PWNA (Power Washers of North America) technical training documentation
- OSHA pressure washing safety standards
- Surface-specific cleaning and chemical application guidelines
Taha built Némos after years of losing screenshots and voice memos across a dozen apps. He writes about on-device AI, personal knowledge management, and building privacy-first tools for iPhone.
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