Dumb question maybe - what about something like this? Says it's adjustable from 20 seconds to 3 minutes and has alternating outputs..
http://www.jlaquatics.com/phpstore/s...duct_ID=wm-nwt
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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