Sydney Plumbing Help

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Clear a Blocked Drain

Simple Tricks to Clear a Blocked Drain

Dealing with a clogged drain in your kitchen or bathroom can be frustrating. Before calling a plumber, try these safe and effective methods to restore flow:


🛠️ Step 1: Boiling Water Flush

  • Simple yet powerful: Works well for grease and soap scum buildup.
  • Boil a full kettle of water: Slowly pour directly into the drain in 2–3 stages.
  • Let heat work: Wait between pours so the hot water can break down residue.
  • Best for partial clogs: Avoid if the pipe is fully blocked.
  • Warning: Do not use on PVC pipes — very hot water can weaken the plastic.

♨️ Hot water can help melt away grease buildup, but always check your pipe material before using this method.

Boiling water flush

🛠️ Step 2: Baking Soda and Vinegar

  • Natural chemical reaction: Helps dislodge debris and deodorize drains.
  • Add baking soda: Pour ½ cup into the drain.
  • Add vinegar: Follow with ½ cup of white vinegar, then cover the drain immediately.
  • Let it fizz: Leave for 15–20 minutes to react.
  • Rinse thoroughly: Flush with hot water to clear the loosened debris.

🧪 This gentle method is safe for most drains and can freshen up smelly pipes while clearing light blockages.

Baking soda and vinegar unclogging

🛠️ Step 3: Use a Plunger

  • Prepare the area: Ensure enough water covers the plunger’s cup for a strong seal.
  • Plunge vigorously: Pump 10–15 times to create pressure.
  • Break up clogs: Works well for hair, soap residue, and food particles.
  • Check progress: Test if the water drains freely; repeat if needed.
  • Clean after use: Wash the plunger thoroughly, especially if used in the bathroom.

🪠 A good plunger can fix most clogs fast — just be sure to maintain a tight seal for best results.

Plunger in use

🛠️ Step 4: Remove and Clean the Trap

  • Locate the trap: The U-shaped pipe under the sink.
  • Place a bucket: Catch water and debris before removing the trap.
  • Unscrew slip nuts: Use adjustable pliers.
  • Clean inside: Remove hair, grease, or sludge with a bottle brush.
  • Reassemble and test: Check for leaks by running water.

🔧 Cleaning the trap is a sure way to remove stubborn clogs close to the drain opening.

Cleaning the sink trap

🛠️ Step 5: Drain Snake or Zip-It Tool

  • Reach deep clogs: Useful for hair and food particles further down the pipe.
  • Insert the tool: Push until resistance is felt.
  • Rotate and pull out: Break up or grab the blockage while twisting.
  • Rinse afterward: Flush with hot water for complete clearance.
  • Clean tool after use: Store properly for future blockages.

🪛 A drain snake can tackle blockages that plungers and hot water can’t reach.

Drain snake clearing a blockage

If the blockage persists despite trying these methods, it may be time to contact a licensed plumber. But for most everyday clogs, these tips will do the trick!

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