[5 Star Johnny]

For siding cleaning of flatwork, we typically use the term "proper cleaning agent application", and include the instructions that all proper precautions will be taken to protect the home, foliage and surrounding, affected areas. Albeit, biodegradeable is a broad term, but this seems to quell their concerns as well. For deck work we use the term chemicals, and include the same "precautionary" language.

Since we are on hundreds of properties annually, we use that example and pose the question, "would we ever be invited back, or be able to continue business if we were harming the property"?

A MSDS sheet is included with our contracts for any chems/detergents that are being applied for that particular contract.

I don't know that I would recommend this particular action. Seems it could spark concern that doesn't need to be there. We keep a file folder of MSDS sheets for everything we use in our rigs, but have never had to pull one out to show a client. Might be more important in the states that have stricter eco-laws.?