When NOT to rinse your panels with a hose
A hose rinse seems harmless. Done wrong, it bakes mineral deposits onto your glass permanently.
What you'll learn
- Why San Diego tap water leaves permanent calcium spots on hot panels
- Why pressure washers crack tempered glass and can void manufacturer coverage
- Why scrubbing with abrasive brushes strips the anti-reflective coating
- When a quick gentle rinse is safe (early morning, cool panels)
Step by step
- Never spray panels in direct midday sun, water flashes and minerals bond.
- Never use a pressure washer on solar glass.
- Never use household cleaners, vinegar, or dish soap.
- A pre-dawn gentle hose rinse on cool panels is OK as a stopgap.
- For a full clean, book a deionized-water soft wash.
Safety note
Hard water spotting from a midday hose rinse is one of the most common reasons people end up calling us, and it can require professional restoration to fully remove.
Rather have a pro handle it?
Call and we will connect you with a local solar pro who covers your area.
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