Inline TPR valve???

Thanks, jadnashua. Of course the arrestors would go on both cold and hot lines. I guess I need another cup of coffee!
This little favor for a friend seems to be building into quite a project and time commitment. I may have to suggest that she call upon a paid professional. Hey, Terry, do much work in Seattle?

Thanks!

Hey Everyone,
I appreciate all of your comments, suggestions, and know-how sharing. It all gets deposited into the knowledge bank for use now or later.
Thanks again!