Stop Using Tap Water in Your Windshield Washer Reservoir – Here’s Why

Bottom Line Up Front

Using tap water in your windshield washer looks harmless, but it can damage the system, reduce cleaning performance, and even affect your vehicle’s longevity.

Stop Using Tap Water in Your Windshield Washer Reservoir – Here’s Why

Image: Stop Using Tap Water in Your Windshield Washer Reservoir – Here’s Why – Performance Comparison and Specifications

Design & Looks

Most modern washer reservoirs are made of plastic that is prone to cracking when exposed to minerals and chemicals found in tap water. Over time, deposits build up on the pump and nozzles, causing clogs and corrosion. The result? A cloudy spray that looks unappealing and does a poor job clearing the glass.

Performance & Mileage

When mineral buildup restricts flow, the washer has to work harder. The pump draws more current, which can slightly increase fuel consumption—especially on long trips where you rely on the washer frequently. Moreover, a blocked nozzle means you’ll need to stop and manually wipe the windshield, taking extra time and energy.

Price & Rivals

Tap water is free, but the hidden cost shows up in repairs. Replacing a washer pump can run $100‑$200, and a clogged nozzle may need a whole reservoir swap, easily reaching $300. By contrast, a gallon of proper windshield washer fluid costs $5‑$10 and prevents those headaches.

Quick Comparison

FAQ

Can tap water damage my windshield washer pump?

Yes. Minerals in tap water cause deposits that can wear out the pump faster than normal.

Is it safe to mix tap water with washer fluid?

Mixing dilutes the protective additives, so you lose anti‑freeze and cleaning power. It’s better to use fluid alone.

How often should I flush my washer reservoir?

At least once a year, or whenever you notice reduced spray performance.

Have you ever tried using tap water in your washer? Share your experience in the comments below.

Source: Read Official News