Pro tip: I learned to check for a second shutoff valve the hard way

Honestly, I was replacing a bathroom faucet in my 1950s house last month and thought I had it all set. I shut off the main water valve in the basement, like I always do. Started unscrewing the supply lines and got a face full of cold water. Tbh, I panicked for a solid minute, scrambling with a bucket. Turns out, the previous owner had put in a second, separate shutoff valve just for that bathroom sink, hidden behind some drywall in the closet next to it. A plumber friend came over, showed me where it was, and now I check for extra valves on every single job, no matter what. Has anyone else found weird hidden valves in their old house?

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the_julia6mo ago

My 1920s place had three valves behind the kitchen cabinets.

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elizabeth_williams6mo ago

Oh wow, @the_julia, that "three valves" detail is wild... I always figured those old places were simpler.

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williams.amy5mo ago

Three valves seems like a lot for just behind the cabinets. Our 1920s house had two shutoffs in a weird spot under the sink and one in the basement ceiling. Took me forever to figure out which did what. I ended up labeling everything with a sharpie on the pipe itself so I wouldn't have to guess again. Now I know exactly which valve kills the hot water to the kitchen and which one shuts off the line to the bathroom upstairs.

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