Humidifier water hammer

Forum Title: Humidifier water hammer

I hear a loud water hammer noise when the water flow to my Bryant humidifier #HUMMBBLBP2417 shuts on or off (I can't tell which). I'm pretty sure it's the humidifier because I don't hear the noise when I turn it off. I hear the noise on the first floor of my house coming from the basement but when I go down to the basement to find the source, I can't. I have an expansion tank on the cold water line near the hot water heater. My furnace company replaced the humidifier solenoid valve and I installed a Sioux Chief mini water hammer arrester on the humidifier's supply line but neither of these have worked. Does anybody have any ideas on how to fix my problem? Thanks.

Category: Plumber Post By: DEREK DAVIDSON (Anaheim, CA), 09/28/2016

Water hammer is caused when flowing water abruptly stops and the change in velocity causes the piping to shake if it's not secured properly. Look through the pipes you have access to and make sure they're securely fastened. If not, add some more clamps to secure them. Contact the manufacturer of your humidifier.http://www.bestsellingreviews.com/Pe...re/Humidifier/

- MEGAN SOTO (Methuen, MA), 09/25/2017

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