Guide 7 of 10

Fix it yourself

The shut-offs and small repairs that stop water damage, wasted water and mould before you need to call anyone.

Hands tightening a pipe fitting under a kitchen sink with a wrench

Six jobs worth knowing

Most of them need a wrench, a plunger or a bucket, and twenty minutes.

Find your shut‑offs before you need them

Every adult and older child in the house should know where these are.

  • Water: the main valve where the line enters the house. Tag it and check it closes fully
  • Electricity: at the panel, switch off the individual circuits before the main
  • Gas: ask your gas company how your meter shuts off, and practise without turning it
  • Replace a water valve that's rusted open or won't close all the way
Ready.gov: Safety skills

Stop a running toilet

Food colouring shows whether the tank is leaking into the bowl.

  • Put a few drops in the tank and wait 10 minutes without flushing
  • Colour in the bowl means a leak, usually from a worn flapper
  • Replace the flapper at least every five years
  • Flush after the test so the dye doesn't stain
EPA WaterSense: Fix a Leak Week

Fix a dripping faucet or showerhead

A faucet dripping once a second wastes more than 3,000 gallons a year.

  • Shut off the water supply before you open anything up
  • Worn washers and gaskets are a common cause of faucet drips
  • A showerhead leaking at the stem usually needs pipe tape on the threads, plus a new washer or O-ring
  • To find hidden leaks, read the water meter before and after two hours with no water use
EPA WaterSense: Fix a Leak Week

Clear a blocked drain without chemicals

Try the plunger first.

  • Then pour in 1 cup each of baking soda, salt and white vinegar, wait 15 minutes and flush with boiling water
  • For a stubborn clog, use a plumber's snake, gently at the bends in PVC pipe
  • Fit drain screens in sinks and tubs to catch hair and food
  • Once a month, flush with ½ cup washing soda dissolved in 2 cups boiling water
University of Florida IFAS Extension: Hazardous household substances: alternatives (PDF)

Deal with a frozen or split pipe

Utah State Extension suggests a plumber first. If you do it yourself, shut off the main supply before anything else.

  • Open the faucet on that line and thaw from the faucet end
  • Use gentle heat (a hair dryer, heat lamp, space heater or hot wet towels) and keep cords away from water
  • No open flame and no boiling water
  • If it may leak as it thaws, open other faucets to drain the system and keep buckets close
Utah State University Extension: Advice to prevent frozen pipes

Clean up mould safely

Patches under about 10 square feet are usually a job you can do yourself. Fix the water problem first, or it comes back.

  • Dry anything wet within 24 to 48 hours
  • Scrub hard surfaces with detergent and water, then dry them completely
  • Wear an N-95 respirator, long gloves and goggles without vent holes
  • Throw out mouldy porous things like ceiling tiles and carpet

Sources

  1. Ready.gov: Safety skills
  2. EPA WaterSense: Fix a Leak Week
  3. University of Florida IFAS Extension: Hazardous household substances: alternatives (PDF)
  4. Utah State University Extension: Advice to prevent frozen pipes
  5. EPA: A brief guide to mold, moisture and your home