How to loosen bathroom water lines in extremely tight spaces
The space behind toilets and underneath sinks is often too wedged in to fit standard wrenches or generate enough turning strength. Without clearance to physically turn a screwdriver or thread off the connections, you are left unable to disconnect the fixtures.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Calling a plumber to handle the disconnectionDid this help you?
- 2Using a smaller adjustable wrench for better maneuverabilityDid this help you?
- 3Turning off the main water supply to the house if the individual valve cannot be reachedDid this help you?
- 4Using a socket, nut driver, or wrench to loosen the nuts instead of a screwdriverDid this help you?
- 5Using a multi tool to cut the parts offDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“We recall that the space behind the toilet super tight and were impressed when the plumber was able to hook it up to the old water line”source ↗
“I think our main concern is getting a wrench in that tight area to loosen them.”source ↗
“Was it installed before the toilet? It kinda looks wedged in there so it wouldn’t have room to thread off?”source ↗
“I'm wondering if anyone can tell me how I'm to remove this tap from below.”source ↗
“Intuitively, I've been trying to remove the two screws to loosen up the faucet. However, I haven't had any luck.”source ↗
“It's either because I dont have the strength or the correct size of screwdriver.”source ↗
“Alternatively, it's because I'm completely incorrect, and they shouldn't be loosened.”source ↗
Where this came up
People with this problem also raised
- 7What to do with old water pipes after removing a fixture?
- 10How do you take apart push-to-connect plumbing fittings?
- 17How to fix a glued sink drain pipe
- 4How to fix a sink drain without removing the P-trap
- 16How to remove a faucet handle with no visible screws
- 5Where to cut a cramped water heater cold line?