I had a partial replumbing with PEX tubing that required knockout of a bathroom wall. When I brought in the wall guy to repair the wall, he said the plumbers had done a terrible job by not securing the PEX tubing and that I'd have to spend another $1000 to have it done the right way. Pictures of the wall are posted at http://www.flickr.com/photos/56841377@N06/?saved=1. Who is correct: the original plumber who left it as is, or the wall guy? Thanks.