I saw some in the garden section of our local K-mart about a year ago - haven't looked since. Think they were about $NZ20 each. But a garden supply store may be one option. Richard P anyone know of a good source for cheap plastic solenoid valves? something to be used with 1/4 or 3/8 inch plastic tubing thanks -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body