Quick fix tricks when your pipes spring a leak

I’d treat epoxy putty as a temporary measure rather than proof the leak is fixed, especially if it’s on a pressurized supply line. Stopping the drip is useful, but it doesn’t tell you how sound the pipe is underneath; I’d plan a proper repair instead of relying on the patch long-term.

For a small leak on an accessible straight section, I’d lean toward a repair clamp as a temporary stopgap rather than relying on putty. Would you make the same choice, or does it depend too much on the pipe and leak to prefer one?

For a small leak on a straight, accessible section, I’d lean toward a repair clamp: it seems like a more contained stopgap than building up putty around the spot. But I wouldn’t treat that as universal - the pipe and exact leak matter, and either option is just temporary until the underlying repair is handled.

If a temporary patch starts dripping again, shutting off the water supply to that line (or the main if needed) can limit further damage while you arrange a proper repair. A bucket and towels can help contain it, but keep water away from electrical equipment; if you can’t stop the leak safely, get urgent help.

A supply-line patch may be under pressure even when nobody’s using water, so a stopped drip there still warrants caution between checks. A drain leak that appears only when the sink is running may be easier to monitor, but it can still damage the cabinet. Either way, no visible drip only shows the patch is holding for now, not that the pipe is sound.

For example, if a leak appears only while the sink is running, I’d stop using that sink and put a container underneath while arranging a repair. If it’s a supply line, not using the sink may not stop the leak; I’d shut off its valve if I could do so safely. Neither step means the pipe is repaired.