How to repair a rusty pipe

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Why Is There Rust on My Galvanized Water Pipes?

Galvanized pipes rust from the inside out, which means that by the time you notice rust, the inside of the pipe may be almost completely blocked. This is why faucets supplied by galvanized water lines frequently suffer from a loss of pressure. The most common area for rust on a galvanized water pipe is in the threads, where the pipe is at its thinnest. When rust appears on the threads of galvanized pipe, it means that the pipe wall has worn through and the pipe will need to be replaced. If possible, replace the entire galvanized water line.

Can a Rusty Galvanized Drain Pipe Be Fixed?

Like galvanized water pipes, galvanized drain pipes will first begin to rust in the threads. Because the flow of water through a drain pipe is not constant, however, a constant drip or spray will not form when a hole wears through the pipe. By the time corrosion is noticed on a galvanized drain pipe, a hole usually exists. While a leak in the galvanized drain line can be stopped with a stainless steel clamp fitting, this is only a temporary repair and the entire line should be replaced.



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