Sink drains get blocked by food and soap. Grease is acidic, so vinegar doesn't work. We need something with strong alkaline properties.

Daniel Smith says baking soda is okay, but soda crystals work better.

He says if baking soda and vinegar don't work, try washing soda.

Washing soda is a common cleaning item and good for unclogging drains. It's more alkaline than baking soda.

Ditch vinegar and bicarb for this 5-minute plumber's method.

Washing soda has a pH of 11 and breaks down grease and fat.

This method is powerful and natural, beating vinegar and baking soda.

Boil water, pour it down the sink, then add soda crystals and hot water.

The heat and alkaline pH break down greasy build-up.

Baking soda isn't enough for most blocked drains.

Let the solution work for 5-30 minutes.

Then, boil more water and pour it down the sink to flush debris.

Your sink should now be unblocked and smell fresh.

To prevent blockages, don't pour grease down the sink and use a sink guard.

Also, keep a can to pour excess fat into and dispose of it properly.