Quote:
Originally Posted by PLUMBINGITALL
MY PROBLEM IS THAT ON THE 1ST FLOOR THE BATH ROOM IN THE KITCHEN HAS NO HW AT TIMES. IF YOU TURN IT ON IT IS COLD. IF YOU LEAVE IT ON AND TURN ON THE COLD WATER AT ANOTHER SINK IT WILL GET HOT FOR A LITTLE WHILE THEN GO COLD AGAIN. THIS IS THE ONLY SINK THAT DOES THIS. WE HAVE BATHROOMS ON ALL FLOORS. THE ONLY THING I KNOW WAS THAT SOMEONE MY HAVE TIED A COLD WATER LINE IN TO THE HOT SOMEWHERE. ANY SUGGESTION?
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What is "it"? The lav in the bathroom with the hot water running, or the cold at "another sink"?
You can tell if you have a cross connection by shutting down the feed to the storage tank and checking for hot water on the third floor. If water flows, then you have a cross connection, if not, then you do not have a cross connection.