I wasn't sure what the reason for the closings was, but I don't believe it's plumbing. I think the most likely reason is that WalMart is using the plumbing as an excuse to stop the unionizing of its employees.
FYI.. I shop at the Brandon store a few times a month. It’s always clean, well stocked, and well staffed..unlike some others. It’s in a good area. I was actually planning on going tomorrow, until I read this..