Car-washing can be done any day of the week but must be done with a hose equipped with an automatic shut-off nozzle or a bucket. Hoses may not be left running.
Consider taking your car to a Water Smart Car Wash. Remember, many local car washes recycle their water on-site and use it many times before draining it back into the sewer systems. These procedures help conserve water and protect local waterways by limiting the amount of soap and oil that flow untreated down storm drains into creeks.