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Old 04-09-2013, 05:28 PM   #1
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Humidifier saddle valve leak


Had a Honeywell bypass humidifier install last fall. The saddle valve tapped into my hot water line directly above my water heater. Following day went into the utility room and water was shooting out the top of the valve all over the place. Plumber came back and replaced the valve.

Today, went to turn off the valve for the season and water began shooting out the top again, and thankfully stopped after the valve was totally closed. What gives with these valves? Are they all problematic? Is there something else that can be used that will last longer?

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Old 04-09-2013, 05:35 PM   #2
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Humidifier saddle valve leak


Saddle valves are against code in many areas. Can you guess why?

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Old 04-09-2013, 05:58 PM   #3
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Humidifier saddle valve leak


usually need to snug down the packing nut to stop the leak at the stem.
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Old 04-09-2013, 06:00 PM   #4
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Humidifier saddle valve leak


they are cheap BUT there is a nut on the top of the valve where the handle goes thru called a packing nut which U can tighten and it tightens a packing inside which should stop the leak. They are usually loose from day 1 and the installers should tighten them. Ideally a 1/4 turn brass Dahl valve installed in a copper tee is the best but then you have to drain the house etc and most humidifiers are installed on a $$ piece work rate so the saddle valves get used.
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Old 04-09-2013, 06:03 PM   #5
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Humidifier saddle valve leak


Got a picture or at least the size of the tubing or pipe your your trying to tap into?
Is it Pex, copper?
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Old 04-09-2013, 06:48 PM   #6
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Humidifier saddle valve leak


Tightened the nut. It was pretty loose. No more leak. Thanks.
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Old 04-09-2013, 06:53 PM   #7
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Humidifier saddle valve leak


Best to leave those valves alone once they have pierced the water line and are opened. Shut the humidifier off with the humidistat. Snug up the packing nut as already mentioned.
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Old 04-09-2013, 07:02 PM   #8
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Humidifier saddle valve leak


One more question, in researching my leak I read that these saddle valves shouldn't be used on hot water lines. If this is true why would Honeywell say that you can install on either the hot or cold lines?
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Old 04-09-2013, 07:26 PM   #9
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Humidifier saddle valve leak


they can be used on hot water lines BUT you should not use plastic tubing. If using hot then we use copper as the plastic could get soft and blow off and is not really heat rated. the newer Honeywells are rated for hot and maybe the tubing they supply is as well but the average plastic tubing we get is not recommended for hot.
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Old 04-09-2013, 08:39 PM   #10
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Humidifier saddle valve leak


remove the saddle valve....install copper tee with compression ball valve for 1/4" tubing...no more trouble

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