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29 Oct 2002 at 3:49 am
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you need to make sure your main valve is working. food coloring in the toilet tank will tell you if the flappers are seeping by. there is good equipment out there to locate this leak but it is expensive equipment. check your local plumbers to see if they have this equipment. also get a 3′ probe and probe along the water line and see if you come up with a wet probe somewhere. Hope this helps.
PRO/2002