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Different Ways to Prevent Clogged Drains

The best way to prevent clogged drains is to keep the three biggest culprits out of them: fats and food scraps in the kitchen, hair and wipes in the bathroom, and lint and debris in the laundry. Fit drain strainers, flush your drains with hot water regularly, and avoid chemical drain cleaners. A few simple habits stop most blockages before they ever start.
Below are the most effective ways to keep every drain in your home flowing, broken down room by room, plus the maintenance habits that make the biggest difference and the warning signs that mean it is time to call a plumber.
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Top ways to prevent clogged drains

  • Catch it early: fit a strainer or hair catcher over every sink, basin and shower.
  • Bin the grease: let fats, oils and grease cool and go in the bin, never down the sink.
  • Scrape first: scrape plates and keep coffee grounds, rice and pasta out of the drain.
  • The 3 Ps rule: only pee, poo and paper go down the toilet (no wipes, even “flushable” ones).
  • Flush weekly: run hot water through drains weekly to keep them clear.
If a drain is already slow, R&G clears it fast with a $0 call-out fee.

What Causes Drains

Prevention is easier once you know what actually blocks a drain. The usual causes are fats, oils and grease (FOG) that harden inside the pipe, food scraps, hair and soap scum, wet wipes and foreign objects, mineral build-up, and tree roots working their way into underground pipes. Almost all of these are avoidable with the right habits.

The Best Ways to Prevent Clogged Drains, Room by Room

In the kitchen

The kitchen sink is the most common blockage point in the home, and grease is the number one reason. Fats and oils look harmless as a warm liquid, but they cool and set hard inside your pipes, trapping food scraps until the drain clogs.
  • Never tip grease down the sink: let cooking fats and oils cool, then pour them into a container and put it in the bin.
  • Wipe pans first: wipe greasy pans with paper towel before washing them up.
  • Use a sink strainer: fit a strainer over the plughole and empty it into the bin.
  • Bin the scraps: coffee grounds, rice and pasta swell and clump, so keep them out of the drain.
  • Flush with hot water: run the hot tap for a minute after washing up to move any residue along.

In the bathroom

Bathrooms clog with hair, soap scum and things that should never be flushed.
  • Catch the hair: fit a hair catcher over the shower and basin waste and clear it regularly.
  • Follow the 3 Ps: only pee, poo and paper. Wet wipes, cotton buds, floss and sanitary items do not break down.
  • Skip “flushable” wipes: even wipes labelled “flushable” are a leading cause of blockages, so bin them.
  • Rinse weekly: run hot water through the drains once a week to shift soap and product build-up.

In the laundry

  • Trap the lint: clean the washing machine lint filter regularly and fit a lint trap on the outlet hose.
  • Shake off grit: shake soil and grit off heavily soiled clothes before washing.

Outdoors and stormwater

  • Keep grates clear: clear leaves and debris off outdoor grates and drain covers, especially in autumn.
  • Clean the gutters: clean out gutters and downpipes so stormwater drains freely.
  • Watch tree roots: large trees near your pipes can send roots into joints, a common cause of outdoor blockages.

Simple Habits and Natural Drain Maintenance

A little routine maintenance keeps drains flowing between cleans:
  • Weekly hot water flush: run hot water through each drain once a week to stop grease and scum settling.
  • Monthly bicarb and vinegar: a monthly pour of bicarb soda followed by white vinegar and hot water helps with odour and light build-up. It is good upkeep, but it will not clear a real blockage.
  • Mind the disposal: run cold water while using a waste disposal and never overload it.
As a quick reference, here is what to keep out of each drain:

Drain

Keep out of it

Kitchen sink

Fats, oils and grease, food scraps, coffee grounds, rice and pasta

Bathroom basin & shower

Hair, cotton buds, dental floss, thick soap and product build-up

Toilet

Anything but the 3 Ps. No wipes (even “flushable”), sanitary items or cotton buds

Laundry

Lint, grit and small objects

Outdoor drains

Leaves, soil, sand and building debris

Why You Should Skip Chemical Drain Cleaners

Reaching for a bottle of drain cleaner is tempting, but it usually causes more problems than it solves:
  • They damage your pipes: caustic and acidic cleaners generate heat and can corrode pipe walls, seals and joints with repeated use, which leads to expensive leaks.
  • They are only a temporary fix: they attack the clog but leave the build-up coating the pipe, so it blocks again quickly.
  • They are risky to handle: the fumes and splashes can burn skin and eyes, and they are harsh on the environment.
  • They can crack older pipes: older PVC and terracotta pipes are especially prone to damage from repeated chemical use.
A licensed plumber clears the blockage properly with a drain machine or high-pressure water jet, cleaning the whole pipe so it stays clear far longer, without the chemical risk.
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When Prevention Is Not Enough: Signs to Call a Plumber

Good habits prevent most blockages, but some problems build underground where you cannot reach them. Call a plumber if you notice:
  • Slow drains: water draining slowly across more than one fixture.
  • Gurgling sounds: gurgling from the sink, shower or toilet when water goes down.
  • Bad odours: a persistent drain or sewer smell inside or outside.
  • Water backing up: water backing up into the sink, shower or toilet.
  • Recurring blockages: the same drain keeps blocking despite your best efforts, which often points to grease build-up or tree roots.
These signs usually mean a deeper blockage. A CCTV drain inspection pinpoints the exact cause, and a professional drain clean or jet blast in Sydney typically starts from around $150. If tree roots or damaged pipe are to blame, pipe relining can fix it without digging up your yard.

How R&G Keeps Your Drains Clear

R&G Plumbing clears and maintains drains for homes and businesses across Sydney and the North Shore:
  • High-pressure jet blasting: clears grease, scale, roots and debris and cleans the whole pipe, not just the clog.
  • CCTV drain inspections: we send a camera down the drain to find the exact cause, and you see what we see.
  • Pipe relining: a no-dig repair for cracked or root-affected pipes that keep blocking.
  • Preventative maintenance: regular cleans for problem drains so small issues never turn into emergencies.
Here is how a job runs:
  • Call or book online: tell us what is happening. We book a time that suits, often same day, with no call-out fee.
  • On-site diagnosis: we find the real cause, not just the symptom, and explain it in plain English.
  • Upfront fixed quote: you get a clear, fixed price before any work starts. No hidden extras.
  • Cleared and guaranteed: we clear the drain, test the flow, tidy up and back the work with a guarantee.

Why Choose R&G Plumbing, Gas & Drainage

We keep drains clear for homes and businesses across Sydney and the North Shore, with fast, licensed service and no surprises on price.
  • $0 call-out fee: you only pay for the work, never just for us arriving.
  • Upfront fixed pricing: a clear, fixed quote before we start, with no hidden extras.
  • The right equipment: high-pressure jetting and CCTV so drains are cleaned properly, not just poked open.
  • Same-day service: most blocked drains can be cleared the same day.
  • Licensed and insured: fully licensed plumbers, with work compliant to Australian standards.
About The Author
Written by the team at R&G Plumbing, Gas & Drainage
R&G Plumbing began with a simple idea: look after people the way you would look after your own family. Show up when you say you will, do the job right the first time, and leave every place better than you found it. A Gordon-based local team with close to two decades of hands-on experience, R&G is one licensed crew for the whole job, blocked drains, hot water, gas fitting, taps and pipe relining, with a $0 call-out fee and an upfront fixed price on every visit.
0461 330 531
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Frequently Asked Questions

How do I stop my drains from getting blocked?

Keep fats, oils, grease and food scraps out of the kitchen sink, catch hair in the bathroom, only flush the 3 Ps, fit strainers on every drain, and flush with hot water weekly. Those habits prevent the large majority of blockages.

Fats, oils and grease, food scraps, coffee grounds, rice and pasta, hair, wet wipes (even “flushable”), cotton buds, sanitary items, paint and chemicals. When in doubt, bin it rather than rinse it.

Bicarb soda and vinegar with hot water are good for odour and light build-up as regular maintenance, but they will not clear a real blockage. For that you need a plunger, a drain machine, or a professional clean.

Not really. They only attack the clog, and caustic or acidic types can corrode and crack pipes with repeated use, leading to costly leaks. A professional clean is safer and lasts far longer.

For most homes, a preventative drain clean every 12 to 24 months is plenty. Homes with large trees nearby or a history of blockages benefit from a more regular schedule.

Yes. R&G Plumbing clears and cleans blocked drains across Sydney with high-pressure jet blasting and CCTV inspections, same day where possible, with a $0 call-out fee.

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