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Home Improvement, Design, and Decorating
Reply to "Plumbing Question--old house bathroom remodel"
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[quote=Anonymous]The problem with galvanized pipe is that connections are made by threading it, and the threading process removes the galvanizing, which is there to keep it from rusting. So over time the threaded ends rust. When you go to disconnect it the rusted ends snap off. So you go to replace the sink, and the pipe feeding the sink snaps off when you go to take the old sink off. No problem, just replace that section of pipe, right? Well, then it snaps off at the other end. OK, replace the next section, right? It snaps off too. Pretty soon you've followed it all the way to either the water heater or the shutoff valve, where there's a brass fitting that won't snap. The other thing that happens with galvanized is it rusts from the inside. It can be working fine until it suddenly rusts through and springs a leak. If your galvanized is 70 years old it is way past its life expectancy. [/quote]
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