How to Prevent Blocked Drains: A Homeowner's Guide

Q: How often should I flush my drains with baking soda and vinegar?

Monthly is ideal. Fortnightly if you cook frequently with oils.

Q: Do drain strainers really make a difference?

Yes. A $5 strainer prevents blockages that cost hundreds to clear.

Simple daily habits and maintenance routines that prevent the vast majority of drain blockages.

What Should Never Go Down Your Drains

Kitchen drains:

Cooking oil, grease or fat (even small amounts)
Food scraps and coffee grounds
Rice and pasta (they expand with water)
Eggshells and fibrous vegetables

Bathroom drains:

Wet wipes (including "flushable" varieties)
Sanitary products, tampons and liners
Cotton buds, dental floss and cotton balls
Nappies and cat litter

Laundry drains:

Lint and fabric fibres (use a lint trap on your washing machine outlet)
Paint or chemical solvents

Install Drain Strainers Everywhere

Mesh drain strainers are the single most effective prevention tool. They cost a few dollars each and prevent hair, food scraps and debris from entering your pipes.

Install them in all shower drains, basin plug holes, kitchen sink and laundry trough. Clean them weekly — simply remove, empty into the bin, and replace.

Monthly Maintenance Routine

A simple monthly routine keeps drains flowing freely:

Baking soda and vinegar flush: Pour half a cup of baking soda into each drain, followed by half a cup of white vinegar. Cover and wait 30 minutes, then flush with hot water.
Hot water flush: Run hot water through kitchen drains for 2–3 minutes to dissolve grease residue.
External drain check: Walk around your property and clear any leaves or debris from external drain grates.

This routine takes less than 15 minutes and prevents the gradual build-up that leads to blockages.

Managing Cooking Oil and Grease

Cooking oil and grease are the number one cause of kitchen drain blockages.

Correct disposal methods:

Let oil cool and solidify in the pan, then scrape into the bin
For liquid oils, pour into a sealed container and dispose in general waste
Wipe greasy pans with paper towel before washing
For large quantities, collect and take to your local recycling centre

Running hot water while pouring grease down the sink does not solve the problem — the grease solidifies further down the pipe where you cannot reach it.

Seasonal Maintenance for External Drains

Autumn (March–May): Clear all external grates of fallen leaves. Check gutters and downpipes. Trim overhanging branches.

Pre-Storm Season (September–October): Clear all stormwater grates and pits. Check downpipe connections. Ensure garden beds are not blocking drainage paths.

After Major Storms: Walk the property and check all drains are flowing. Clear debris from grates. Check for pooling water that indicates a blocked underground pipe.

When to Schedule Professional Maintenance

Schedule professional drain maintenance if:

You have large trees within 5 metres of your sewer line — annual CCTV inspection recommended
Your property is older than 30 years — original pipes may be deteriorating
You have experienced a blockage before — recurring blockages indicate a structural issue
You manage a rental or strata property — proactive maintenance prevents expensive emergencies

We offer annual drain maintenance plans that include CCTV inspection, preventative jetting and a condition report.

Frequently Asked Questions

How often should I flush my drains with baking soda and vinegar?

Monthly is ideal for most households. Fortnightly if you cook frequently with oils.

Do drain strainers really make a difference?

Yes. They are the single most effective prevention tool. A $5 strainer prevents blockages that cost hundreds to clear.

My drains are fine — do I still need professional inspections?

If you have large trees near your sewer line or an older property, yes. Problems develop silently over years.

Prevent Costly Drain Emergencies

Annual drain inspections and maintenance plans across the Central Coast, Northern Sydney, Sydney and Newcastle.