I believe I have a single handle shower fawcet. It looks as though the gaskets are not holding anymore and the water pressure pushes the handle out. It constantly runs so I have had to take off the handle and zip tied it shut. How do I fix or replace?:(

What's the brand name of your shower valve? How old is it? What's the water pressure in your house? Waiting on your reply, Tom

Jon, You answered by E-mail.
This is the message:

I believe it's a Moen. It's I believe original to the house 20 years. And it is
A little corroded. Jon

Thanks Jon. Please keep it on the plumbing page and not in my mailbag.
Change the cartridge and you will have just about rebuilt the valve. If you need instruction on changing the cartridge click on back. Good luck, Tom

I have trouble installing the replacement cartridge - it does not want to go all the way in - is there a trick to it?

What is tha brand and model Number of your faucet and?
What part number cartridge did you put in? Thanks.

John