hcarter62
Member
The one advantage of going to the car wash is the oil and detergent is in all likely hood captured in a oil seperator before being discharged to your local wastewater treatment plant. Folk that live in urban areas want to be carefull that your washings are not going to the street storm drain. Detergent has a lot of phosphorus as an ingredient, and is a primary component of algee blooms and oxygen depletion in our waterways. As I am sure most of you know the majority of storm drains are a direct dischage to the nearest brook, stream, or river.