Re: Insert T connection in galvanized line
You could use a saddle tee. You clamp it on the existing pipe, drill a hole into the pipe, then thread the new pipe into it.
Be sure to remove faucet aerators and flush all the lines downstream of the saddle tee to remove any metal debris that might get inside of the existing pipe. If there's a toilet, also disconnect the supply tube and flush that line; debris can get trapped in the float valve and hinder its operation.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.