I have three bathrooms in house all with moen fixtures. One of which makes a lot of noise when someone is in shower. The other two don't. I have changed the cartridge and this did not solve problem. Willing to replace whole system, only if this will solve problem. Any thoughts?

Hello,

My name is Olivia from Moen. I'm sorry you are having some noise issues with your products. If you call us at 1-800-BUY-MOEN we would be happy to assist you!

Have a great day!

I would suggest giving Olivia a call. She should be able to help you with your problem ,and most likely send you free parts.