Grey water systems are often highly controlled by local codes and regulations. If you start trying to rework an old system that does not meet the current code, it may be both complicated and expensive. You may just have to call a plumbing company in your area who does this type of work, and see if its feasible to improve/change your current system.

Bruce

Nancy, some of our clients use double sinks, One side is for rinsing vegetables and dishes and flows out to the grass. The other side has the garbage disposal and flows to the sewer. You can go to our web site www.grey4green.com and download a DIY guild for a greywater filter you or your plumber can make to capture just the large particles that get wash out with vegetables. (change about every 6 months). A plumber can easily make the modification under the sink. - Joseph