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Guaranteed Same Day Service For All Gold Coast Septic Tank Problems

Problems with your septic tank system is a same-day priority task for Whywait Plumbing as any blockage in your septic tank is an unhygienic health hazard. At Whywait we understand having your septic tank system fully functioning is a priority, so call us now for rapid response same day service to ensure your septic tank problems are resolved today. 


For a blocked septic tank same day service call (07) 5580 4311. For non-urgent repairs feel free to send us your details.

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If It’s Septic Tank Related – We Fix It! Blocked or Overflowing, Replacements, Repairs, Emergencies – 7 Day Service!


We Guarantee To Resolve Your Septic Tank Problems As A Blocked Septic Tank Is More Than An Inconvenience

A blocked or overflowing septic tank is a same-day priority task for Whywait Plumbing so call us now (07) 5580 4311 to ensure we attend to your septic tank problems today.

Any septic tank problem is an unhygienic health hazard, especially if your toilets become blocked and sewage is overflowing from the septic tank or absorption trenches.

It is very seldom that any blocked septic tank clears itself. Blocked, broken, leaking and flooding from a septic tank and it’s absorption trenches is one of the most horrible problems for a home or business that relies on a septic tank system to remove wastewater and sewage.

Problems occur for multiple reasons, such as incorrect maintenance, poor installation, incorrect pipe sizing, blocked absorption trenches and ground movement. 

What Do You Do If You Have a Septic Tank System Failure?

A septic tank system failure can become an emergency, fast. What do you do, and what causes a septic tank system failure? Below we answer some of the common questions. For further information, give Whywait Plumbing a call on (07) 5580 4311 and, we would be happy to assist.

What is a septic tank system?

If your property isn’t connected to the City of Gold Coast sewerage system, the treatment and disposal of sewage and wastewater will occur on your property. One of the oldest and most common wastewater treatment systems is the septic tank system. Due to the way the septic tank system is constructed, it must be controlled in a manner that is not harmful to the environment, cause problems for your family or your neighbours or create an unhealthy or unhygienic condition. A septic tank works by breaking down the solid matter from sewage and wastewater using millions of bacterial microorganisms.

What happens when a septic tank system is failing?

If your septic system tank is failing, it is neither treating nor disposing of sewage and wastewater in the manner it was designed to do. This can result in untreated or poorly treated wastewater being released onto lawn and garden areas. This can result in adverse effects to your families health and wellbeing.

A failing septic tank system is when the sludge and scum build-up in the tank to a point where it flows up both the inlet pipe and outlet pipe of your septic tank. This blockage of the tank results in your home’s drainage system backing up, which, increases the risk of sewage and wastewater flooding your home.

Why does a septic tank system fail?

There is a multitude of possibilities that can cause a septic tank system to fail, including:

  • Overloading of your septic tank system with more wastewater than it was designed to handle.
  • Incorrect or lack of maintenance.
  • Inlet or outlet baffles on the septic tank become blocked or damaged.
  • Incorrect installation when the home was constructed.
  • Badly designed system.
  • Inappropriate septic tank system for the property usually being too small.
  • Damage to the septic tank drainage pipes such as tree roots in the inlet or outlet pipes.
  • Damaged distribution box to the absorption trenches.
  • Absorption trenches that no longer function to dispose of the wastewater flow.

What are the indicators of a septic tank system failure?

Obvious indications and associated symptoms to indicate your septic tank system is failing can include:

  • A pungent odour is emitting from your septic tank system.
  • Your septic tank is needing frequent pumping out every few months.
  • Your toilets, sinks and showers keep backing up and gurgling.
  • Your shower or bath is slow to drain with gurgling sounds from the floor waste drain occurring.
  • Whenever you flush the toilet, you can hear gurgling noises in the bathroom.
  • There are always wet areas around your septic tank or surrounding the absorption trenches.

What should you do if your septic tank system fails?

Even if you adhere to the City of Gold Coast compliance and maintenance requirements, you can still experience a septic tank system failure. If you find that your septic tank is failing, we recommend you:

  • Contact Whywait Plumbing on (07) 5580 4311 and, we would be happy to assist.
  • Try to use your toilet, shower, basin and sink sparingly to prevent wastewater flowing until the system has been repaired.
  • If there is sewage flowing onto your lawn areas barricade off the area to stop children and animals from access.
  • Do not attempt to undertake a DIY redirection of your sewage to other locations, as this is not only illegal but a health risk.
  • Do not just place soil or sand over any sewage that has made its way to the surface of your lawn, as this can cause it to back up into your drainage pipes.

Do not ignore any problem with any part of your septic tank system. It will not just simply go away. The longer you leave problems, the worse the situation becomes with hygiene and health. A call now saves a lot of time and money.

How can you prevent your septic tank system from failing?

To prevent your septic tank system from failing, you need to ensure the following:

  • Regular maintenance and servicing.
  • Pump out your septic tank regularly.
  • Avoid excess water usage whenever possible that creates inflows of wastewater.
  • Don’t add extra plumbing fixtures without resizing the requirements of your septic tank and absorption trenches.
  • Take great care in what you flush down the toilet or wash down the sink, only use septic system-friendly options as above.
  • Always replace or repair any leaky fixtures as soon as you find them.
  • Do not drive over the lawn area where your absorption trenches are located.
  • Do not cover the septic tank, greywater tank or distribution box with soil, mulch or plants.
  • Maintain the access inspection opening to the septic tank, greywater tank and distribution box.
  • Maintain the grass and plants growing over the top of the absorption trenches.

What Are Your Absorption Trenches?

The absorption trench is the trench system that is excavated in the lawn area downstream of your house where piping connected to the distribution box sits on a gravel bed then backfilled with further gravel and covered with topsoil. This trench releases sewage wastewater from the piping, that originates from your toilets and greywater from bathrooms, kitchen and laundry.

Absorption Trenches are constructed to suit the purpose of the wastewater requirements of your house. Design factors such as the required volume of wastewater plus environmental considerations such as the soil quality all determine the final design attributes of your absorption trench including depth, length, width and pipe size.

What is the life span of an absorption trench?

Multiple factors determine the lifespan of your absorption trench The absorption trench for your septic tank, if correctly installed and maintained, will last in at least 10-15 years. This can be much less if the initial installation was substandard, if the slotted overflow pipe which runs through the trench gets clogged with tree roots or if the effluent wastewater is hindered from seeping efficiently into the surrounding soil or evaporating if the area becomes shaded by trees.

Absorption trench maintenance

Maintainance and servicing of your septic tank and absorption trenches is fundamental in ensuring your septic tank system functions efficiently. Keep vehicles away from the lawn areas where your absorption trench system is installed plus check the surrounding lawn area for signs of leakage or unpleasant odours.

How Does A Septic Tank Work?

Septic tank system treats wastewater from your toilets and greywater from the laundry, kitchen and bathroom. This treated water can then be safely dispersed below ground via absorption trenches.

There are two types of septic tank systems that have been installed on the Gold Coast. Your system will either be an all-purpose system or a split system.

  • An all-purpose system will collect all your homes wastewater and sewage and treat it in one tank. This is then discharged through a distribution box into absorption septic trenches.
  • A split system uses two tanks to treat wastewater and sewage. Toilet sewage water is discharged into the septic tank then into a distribution box to the absorption septic trenches. Wastewater or greywater from your kitchen, bathroom and laundry is discharged to a greywater tank before being distributed via a pump into the garden and lawn. The kitchen sink waste will be connected to a small grease trap which collects any oils or fats before the wastewater flows into the greywater tank.

Once wastewater and sewage flow into the septic tank bacteria breaks down the solids in the septic tank. The end products of this process are water and sludge. The sludge sinks to the bottom of the tank, and scum then floats to the top of the tank.

A healthy Gold Coast septic tank system is a dynamic living ecosystem. Maintaining the bacteria needed to break down solids must be maintained in correct proportions to digest the solid waste or faeces so it’s transformed into sludge.

Keeping Your Septic Tank Healthy

If there are not enough bacteria in your septic tank, it will soon be obvious. Lack of bacteria creates odour emissions from your tank. You will notice a pungent, unpleasant odour if there are not enough bacteria to breakdown the solid waste properly.

Suggestions to prevent your septic tank system from failing:

  • Do not flush tampons, wet wipes, dental floss, kitty litter, disposable nappies or paper towels into your septic tank.
  • Do not put plastics down the toilet or sink.
  • Do not put chemicals such as solvents, oils, paints, disinfectants, pesticides, or bleaches in sinks and toilets as they can kill the healthy bacteria in your septic tank system.
  • Switch to non-toxic, natural cleaners such as No-Rinse Floor Cleaner Sanitiser & Disinfectant or Surface Sanitiser & Disinfectant and follow the instructions. It is essential to avoid cleaners that contain high levels of phosphorous.
  • Change to natural or low phosphorous washing powders in your washing machine.

Mandatory Five Year Compliance Inspections

You are required under Queensland law to have your septic tank system inspected and certified by a licensed plumber/drainer every five years.

The City of Gold Coast will send you a reminder letter every five years to remind you that your system is due for inspection. Whywait Plumbing is licensed to undertake the compliance inspections so call us on (07) 5580 4311 to book your inspection.

“Nathan, the plumber we had come to our home was on time, very respectful and eager to ensure the job was completed to our satisfaction. A rare quality today.”

Pat Cahill

Septic Tank Repairs & Service

For septic tank plumbing emergencies please call (07) 5580 4311 for rapid response service. For all other plumbing repairs feel free to email us for assistance.

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Need A Plumber For Septic Tank Repairs Today?

At Whywait Plumbing Services our plumbers and gas fitters are here to assist you whenever you need us. Call anytime, we always answer your call!

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