A question concerning flushes? How would you guy's recommend doing this resposibly at home? When I was young, down the driveway and into the gutter and grass was the way to go. Now that I'm a home owner and have learned that doing this isn't so smart on the ecology, what's the best way? A car wash does have the proper drainage so it can treated later but at home is collecting in buckets the only way, what about disposal after collection, are there drop off sites as in oil disposal?