Hello all, My problem is that the plumbing has rusted from inside and is clogging up the hot water flow to one of the bathrooms. I myself do not have the money needed for a plumber to come in and replace it all. So I have flushed the pipes at least three different ways. My question is is their a way to add vinegar into the water while it flushes and if so how does one do so? Also any other ideas would be most welcomed.