Plumbing Emergency Kit: Fix It Before the Plumber Arrives

Stop the Water First

Know where your main water shut-off valve is before you need it. In cold climates, it is usually in the basement near where the main line enters the house. In warm climates, it may be outside near the meter. Every adult in the household should know its location.

A water meter key ($10 to $15). If your shut-off is at the curb (common in many neighborhoods), this T-handle wrench reaches down into the meter box and turns the valve. Without it, you are standing in a rising puddle while you call the water company.

Individual shut-off valves exist under every sink and behind every toilet. Turn these clockwise to shut off water to a single fixture without killing water to the whole house. Test them once a year by turning them off and on. Valves that sit open for years can seize. Better to find that out during a test than during an emergency.

The Kit

1. Plunger (cup style for sinks, flange style for toilets). You need both types. A cup plunger does not seal on a toilet because the drain opening is a different shape. A flange plunger (has a fold-out extension on the rubber cup) seals against the toilet's trapway. Buy two plungers and keep them in separate bathrooms.

2. Drain snake (25-foot, 1/4-inch cable). For clogs the plunger cannot clear. Feed it into the drain, crank the handle, and the cable either breaks through the clog or hooks it so you can pull it out. Works on kitchen sinks, bathroom sinks, and tub drains. Does not work on toilet clogs (use a toilet auger for that).

3. Toilet auger (closet auger). A specialized snake with a vinyl-coated cable that won't scratch porcelain. The bent tube guides the cable into the toilet's trap. If a plunger doesn't clear a toilet clog, this is the next step before calling a plumber.

4. Adjustable wrench (10-inch). Tightens and loosens compression fittings, supply line nuts, and faucet connections. One tool covers most plumbing fasteners.

5. Channel-lock pliers (12-inch tongue-and-groove). Grips round fittings (drain baskets, trap nuts) that a wrench can't. The adjustable jaw handles a wide range of sizes.

6. Teflon tape (1/2-inch, 3 rolls). Wraps around threaded connections to seal them. Three wraps clockwise (when looking at the thread end-on) is the standard. Every threaded plumbing connection needs it.

7. Pipe repair clamp or self-fusing silicone tape. For temporary repair on a leaking or burst pipe while you wait for a permanent fix. A pipe repair clamp ($5 to $15) clamps over a pinhole or small crack. Self-fusing tape ($8) wraps around the pipe and bonds to itself under pressure.

8. Bucket and towels. Not glamorous, but a bucket under a leaking pipe prevents water damage while you work. Old towels absorb the rest.

Common Emergencies and What to Do

Running toilet: remove the tank lid and check the flapper. If it doesn't seal, it leaks water into the bowl and the fill valve runs constantly. Replacing a flapper ($5 to $8, no tools) fixes 80% of running-toilet complaints. If the flapper looks fine, check the fill valve height and adjust per the markings inside the tank.

Clogged drain (sink or tub): plunger first. Fill the sink with 2 to 3 inches of water, press the plunger over the drain, and pump vigorously 15 to 20 times. If that fails, snake it. Remove the drain stopper first. Feed the cable until you feel resistance, then crank and push. Pull back slowly.

Leaking supply line: shut off the valve under the fixture. If it leaks from a compression fitting, tighten the nut 1/4 turn with a wrench. If the hose itself is leaking, replace it. Braided stainless supply lines ($8 to $12) are the standard and should be replaced every 5 to 8 years proactively.

Burst pipe: shut off the main water valve immediately. Open a faucet at the lowest point in the house to drain remaining water. Apply a pipe repair clamp or self-fusing tape as a temporary fix. Call a plumber for the permanent repair. A burst pipe left unfixed causes $5,000 to $70,000 in water damage depending on how long it runs.

Garbage disposal jammed: turn it off. Insert an Allen wrench (1/4-inch, usually included with the disposal) into the hex socket on the bottom of the unit and turn it back and forth to free the impeller. Press the reset button on the bottom. Turn it back on.

When to Call a Plumber

Sewer line backup (multiple fixtures backing up simultaneously). This is beyond a drain snake. It requires a professional power auger or camera inspection.

Gas line smell. Leave the house and call the gas company. Do not use any tools, switches, or electronics.

Water heater failure. If you see pooling water around the water heater, turn off the power (electric) or gas supply (gas) and the cold water inlet valve on top. A leaking water heater tank cannot be repaired. It needs replacement.

Any repair you are not comfortable with. There is no shame in hiring a professional. The plumbing emergency kit is for triage and common fixes. Complex piping, anything involving the sewer main, gas connections, or water heater installation should be handled by a licensed plumber.

Frequently Asked Questions