4.What Can You Do?

The best way to minimize the effect washing
your car has on the environment is to use a
commercial car wash. Most locations reuse
wash water several times before sending it to
a treatment plant.

However, if you choose to wash your car
at home or on the street, these are some
things that you can do to minimize the water
quality impact:

  • Use biodegradable, phosphate-free, waterbased
    cleaners only.
  • Minimize water usage. Use a spray gun with
    flow restriction to minimize water volume
    and runoff.
  • Wash on an area that absorbs water, such
    as gravel, or grass. This can filter water
    before it enters groundwater, storm drains,
    or creeks. Avoid washing cars on concrete
    or asphalt pavement unless it drains into a
    vegetated area.
  • Only let wash water soak into the ground as
    long as you are using biodegradable, phosphate-
    free cleaners.
  • When planning a car wash fundraiser, try
    developing a partnership with a commercial
    car wash facility, or use a safe location.
  • Always empty wash buckets into sinks
    or toilets.

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