Published by JSR Electrical for Mackay homeowners. Not legal advice. Electrical and gas work must be carried out by appropriately licensed tradespeople. This page was not reviewed by a named individual expert.
Mackay’s wet season loads roofs, gutters and stormwater systems — and it is also when household drains show every wipe, fat deposit and root intrusion that built up over the dry months. This guide helps you decide urgency and who to call, without chemical DIY “fixes”.
Private house drains vs council sewer
Mackay Regional Council explains that the sewer and manholes a house drain connects to are council’s responsibility, while house drains on the property are the owner’s responsibility. If you suspect a blockage, council asks residents to call 1300 622 529 so they can advise whether the issue is in the sewer or the private drain. Private drain work should be handled by a licensed plumber.
Common causes council warns about
Council education materials highlight flushable wipes and baby wipes, fat and grease, sanitary products, toys, tree roots, and cracked pipes. ‘Flushable’ wipes still clump in sewers. Only human waste and toilet paper belong in the toilet; wipe pans with paper towel instead of rinsing fat down the sink.
Overflow relief gullies (ORGs)
An ORG outside the home is designed so that if a drain backs up, the grate can lift and discharge outside rather than into living areas. Council advises checking that the ORG is fitted and can operate. Sewage inside the home is an urgent health issue — stop using fixtures and call a licensed plumber.
Stormwater is a different system
Roof water and surface drainage are not the same as sanitary drains. Council stormwater guidance places responsibility on owners to maintain gutters, downpipes and on-site stormwater components and to discharge roof water to lawful points such as kerb and channel or approved systems. A licensed plumber can help separate ‘roof leak / gutter’ problems from sewer blockages — see also JSR plumbing & gas in Mackay for blocked drains, camera inspection and roof/gutter repair options.
When to book
Same-day and emergency callouts are available for serious overflows. Request a plumbing quote or call (07) 4863 0508. Coverage spans suburbs listed on our service areas page.
Sources
- Mackay Regional Council — Water services (resident hub)
- Mackay Regional Council — Plumbing approvals
- QBCC — Home Owners Guide to Plumbing Matters (May 2025 PDF)
- Mackay Regional Council — Waste (bin disposal of wipes etc.)
Wet-season patterns unique to the coast
First-storm leaf litter can choke gutters and downpipes within hours. That is a stormwater problem first. At the same time, guests over the holidays put more paper and wipes through toilets. When both systems struggle on the same weekend, it is easy to mis-label the fault. Ask: is water coming from sanitary fixtures (toilet, shower, floor waste) or from roof edges and yard ponding? Your answer changes whether you call a plumber for drains, a plumber for roof/gutters, or council about a public sewer.
Tree roots seek moisture in older earthenware or cracked PVC joints. Camera inspection — listed among JSR’s drain services — lets a licensed plumber see roots, collapsed sections or foreign objects without guessing from the clean-out alone.
What not to pour down the drain
Council’s wastewater education is blunt: fats cool and set; wipes do not break down like toilet paper; nappies, cotton buds and sanitary products belong in the bin. Enzymatic consumer cleaners are not a substitute for clearing a grounded blockage and can give false confidence while sewage levels rise toward an ORG or an internal gully.
Health and cleanup
Sewage contains pathogens. Keep children and pets away, use gloves if you must handle contaminated items, and discard porous materials that cannot be sanitised. A licensed plumber can advise on disinfection after an overflow. If sewage entered electrical areas, read the electrical warning guide before restoring power.
For preventative work before the build-up, book gutter clearing and drain checks early — see plumbing and gas services.
After a cyclone or flood warning, prioritise life safety over clearing drains. Do not enter floodwater. When it is safe, check ORGs are free of debris and that stormwater pits at the base of downpipes are not packed with leaf litter — many ‘gutter’ callouts are actually blocked surface grates.
Camera inspection and relining — ask, don’t assume
Not every blockage needs excavation. Licensed plumbers may recommend CCTV to confirm the cause, then choose jetting, mechanical clearing, patch repair or relining based on what the camera shows. Homeowners should ask what method is proposed and whether the work is on the private drain or requires council coordination. Avoid anyone who will not explain the plan before starting invasive work.