image shows a Ri-Industries concrete septic tank being installed underground

Why South Australian Conditions Demand a Stronger Septic Tank

Thursday, 11 September 2025 by Ri Industries

South Australian conditions demand special considerations. If you’re building or upgrading a property in South Australia, there’s one part of your infrastructure you can’t afford to overlook: the septic system.

What many homeowners and developers don’t realise is that not all septic tanks are built for the same environment. South Australia’s unique soil types, climate extremes, and bushfire risks require something more than a basic, one-size-fits-all solution. That’s where Ri-Industries’ concrete septic tanks shine.

Here’s why strength, stability, and smart design matter more than ever in our part of the world.

1. Hot, Dry Summers Can Compromise Lightweight Tanks

South Australian summers can be very hot and dry. Plastic tanks – though lightweight and inexpensive – can become brittle, warp, or degrade when exposed to long-term heat stress. In contrast, concrete tanks retain their strength and integrity, even in extreme temperatures.

Concrete doesn’t bend, soften, or break down in the heat, making it a far more reliable long-term investment for homes in hot, dry climates like ours.

2. High Water Tables Can Cause Tanks to Float

In certain parts of SA – especially after heavy rain or flooding – rising water tables can literally push lighter tanks to the surface. This is a major issue with plastic tanks, which can float even when full.

Concrete septic tanks from Ri-Industries are too heavy and well-anchored to budge, providing peace of mind no matter what the weather brings.

3. Shifting Soil Needs a Tank That Won’t Crack

Expansive clay soils, sandy ground, or reactive soils are common throughout South Australia. These types of soil expand, contract, or shift significantly with moisture levels, putting added stress on any underground structure.

Concrete tanks are built with reinforced steel mesh and high-frequency vibration during casting, giving them the structural strength to handle soil movement without cracking or failing.

4. Bushfire Resistance is a Must-Have

In bushfire-prone regions, plastic tanks are a serious vulnerability – they can melt or catch fire in extreme heat. Concrete, on the other hand, is fireproof. A buried concrete septic tank is naturally insulated and won’t contribute to fire hazards on your property.

It’s an added layer of protection for your home – and your peace of mind.

5. Custom-Engineered for South Australian Sites

Every site is different. That’s why all Ri-Industries septic tanks are manufactured in South Australia, and we offer customised inlet and outlet placements to suit your layout. You won’t need to compromise on performance or design – we tailor the tank to your needs.

Plus, our tanks are fully engineered and backed by a manufacturer’s warranty, giving you confidence from the ground up.

Don’t Settle for Less Than What South Australia Demands

Your septic system is an essential part of your home’s infrastructure – and it needs to be built for the environment it’s in. Concrete tanks from Ri-Industries are stronger, longer-lasting, and better equipped to handle the unique demands of South Australia.

Call our team on (08) 8444 8100 or request a quote online to find out more about our locally made, engineered-to-last septic tanks.

image shows aa picture of a truck delivering a concrete Ri-Industires rainwater tank to a construction site.

Underground Concrete Rainwater Tanks – 5 Surprising Benefits

Tuesday, 19 August 2025 by Ri Industries

Underground concrete rainwater tanks offer many benefits. When most people think of rainwater tanks, they picture a large, above-ground structure taking up valuable space in the yard. But at Ri-Industries, we do things differently. Our underground concrete rainwater tanks, manufactured right here in South Australia, are designed to give you high performance, long-term durability—and a whole lot more than you might expect.

If you’ve been considering rainwater harvesting, here are five surprising reasons why going underground with a concrete tank is the smarter, more sustainable choice.

1. Cooler Water Year-Round

Unlike above-ground plastic tanks, our underground tanks stay well insulated below the surface. That means cooler water – even at the peak of summer. Cooler water is not only more pleasant to use but also discourages bacterial growth, making your stored water cleaner and safer for household or garden use.

2. No Algae, No After-Taste

Algae thrive in sunlight – and above-ground tanks often struggle with it. Underground concrete tanks are naturally shielded from light, virtually eliminating the risk of algae growth. Plus, with no plastic lining, your water won’t pick up that unpleasant “tank taste.” Just clean, fresh rainwater – exactly as nature intended.

3. Out of Sight, Not Out of Mind

Don’t want a tank dominating your outdoor space? We get it. Installing your tank underground keeps your landscape neat and uncluttered. Whether you want to preserve your garden design or maximise usable space, our tanks stay completely out of sight while doing the hard work below.

4. Vandal- and Fire-Proof

Concrete is tough – really tough. Unlike plastic tanks, concrete won’t melt, warp, or catch fire. And being underground also protects it from vandalism or weather damage. This level of durability makes concrete tanks ideal for both rural and suburban homes, especially in bushfire-prone areas.

5. Built to Last (and Built for You)

Every Ri-Industries tank is made from high-frequency vibrated reinforced concrete, cast with steel mesh and fitted with brass components for superior strength and longevity. And because we manufacture locally in Adelaide, we can custom-position inlets and outlets to meet your specific site needs.

Backed by full engineering approval and our manufacturer’s warranty, our tanks are designed to last the distance – giving you peace of mind for decades to come.

Ready to Future-Proof Your Water Supply?

Whether you’re building, renovating, or simply planning for a more sustainable future, an underground concrete rainwater tank is a smart, long-term investment.

Call us on (08) 8444 8100 or request a quote online to find out how a Ri-Industries tank can work for your property.

Let’s build something that lasts – starting beneath the surface.

Image shows a Ri-Industries truck with a concrete tank on it for delivery

Understanding the Environmental Impact of Precast Concrete

Wednesday, 4 June 2025 by Ri Industries

Concrete isn’t typically considered environmentally friendly, but the building industry is actively working to reduce its carbon footprint and resource use. In South Australia, more local building projects are adopting low-carbon materials and more sustainable construction practices using concrete.

Precast concrete is often seen as a more environmentally friendly alternative to traditional (in-situ) concrete. But what makes it a greener choice? Let’s explore how the construction industry is using precast concrete to support more sustainable outcomes and shape a greener future.

Lower Carbon Emissions
One of the most significant environmental advantages of precast concrete is its ability to reduce carbon emissions. Factory-based production allows for optimal energy usage and advanced curing techniques, which can cut the CO₂ footprint by up to 25% compared to traditional on-site concrete pouring. Additionally, by transporting finished components to the construction site – rather than raw materials for on-site mixing -precast concrete further reduces emissions related to transportation and on-site machinery use.

Reduced Material Waste
Precast concrete is manufactured in controlled factory environments, enabling precise measurements and efficient use of materials. This process can reduce material waste by up to 20% compared to on-site construction. Molds are reused, and any excess material can often be recycled directly back into production, supporting a circular economy and minimising landfill contributions.

Durability and Longevity
The durability of precast concrete means structures last longer and require less frequent repairs or replacements. This longevity translates to lower resource consumption and waste over the building’s lifecycle. Precast panels also provide superior protection for insulation and other building materials, further reducing maintenance needs and prolonging the life of the overall structure.

Energy Efficiency in Buildings
Precast concrete components can be designed with built-in insulation, improving a building’s energy efficiency and reducing ongoing heating and cooling costs. The high thermal mass of concrete helps regulate indoor temperatures, contributing to lower operational emissions over time.

Precast concrete stands out as a more sustainable building material thanks to its reduced carbon emissions, efficient use of resources, incorporation of recycled materials, and long-term durability. As the industry continues to innovate, precast concrete will play an increasingly important role in building a more sustainable future for construction. To learn how Ri-Industries can help you with your precast needs, please call 08 8444 8100.

Choosing the Right Toilet Paper for Septic Tanks

Wednesday, 13 November 2024 by Ri Industries

Choosing the right toilet paper is more than just a comfort issue—it’s about maintaining the health of your septic tank. A septic system is a delicate ecosystem of bacteria that breaks down waste, and not all toilet papers are created equal when it comes to supporting this process. Using the wrong kind can lead to clogs, slow drainage, and expensive repairs.

How Septic Systems Work

A septic system separates solids from wastewater, allowing bacteria to break down the waste in the tank. Water and treated waste are then filtered back into the soil. Since everything flushed into the system needs to decompose properly, toilet paper plays a crucial role in maintaining its balance. If the toilet paper doesn’t break down quickly enough, it can accumulate and cause blockages.

What Makes Toilet Paper Septic-Safe?

When selecting a toilet paper for a home with a septic system, the key qualities to look for are:

Biodegradability: Septic-safe toilet paper should break down quickly in water to avoid clogging pipes or filling up the tank.
Strength vs. Dissolvability: While strong toilet paper is convenient, it should still dissolve easily in water. The balance between softness and dissolvability is crucial.
Free from additives: Many scented or lotion-infused toilet papers contain chemicals that may disrupt the bacterial balance in the septic tank, making it harder for waste to break down properly.

Best Toilet Paper Brands for Septic Tanks in South Australia

There are many toilet paper types and brands suitable for septic tanks. Here is a selection:

Quilton Toilet Paper
- Quilton is a well-known and widely available brand in Australia. Quilton’s standard 3-ply toilet paper is soft and strong, but they also offer a 2-ply variety that’s better suited for septic tanks. The 2-ply option is designed to break down faster in water, which reduces the risk of clogging and allows for a smoother operation in septic systems. It’s a good middle ground between comfort and dissolvability.
Sorbent Toilet Paper
- Sorbent offers a hypoallergenic range of toilet paper that’s free from fragrances and dyes, making it a great option for those with septic systems. The 2-ply and 3-ply versions dissolve fairly well in water, but for the best results, the 2-ply is recommended. Its thinner sheets allow for quicker breakdown without sacrificing too much in the way of comfort.
Who Gives A Crap Toilet Paper
- Who Gives A Crap is a popular eco-friendly brand available in South Australia that uses 100% recycled materials. This makes it a great option for septic tanks as recycled toilet paper tends to break down more quickly. Additionally, their products contain no dyes, fragrances, or lotions, which helps maintain the balance of bacteria in septic systems. Bonus: this brand is committed to sustainability and donates 50% of its profits to build toilets in developing countries.
Pure Planet Toilet Paper
- Pure Planet is another eco-conscious brand that uses bamboo to create toilet paper. Bamboo fibers tend to dissolve quickly, making this a septic-safe choice. Like Who Gives A Crap, Pure Planet also avoids using chemicals or additives, so it won’t disrupt the natural bacteria in your tank.
Coles and Woolworths 2-Ply
- Coles and Woolworths offer their own brand of toilet paper that’s affordable and septic-friendly. For example, the “So Soft” 2-ply variety from Coles strikes a balance between comfort and biodegradability, making it a solid option for homes with septic tanks. Being supermarket brands, these are easily accessible across South Australia.

Toilet Paper to Avoid for Septic Tanks

While it’s tempting to go for plush, ultra-soft toilet paper, many of these varieties are not ideal for septic tanks. Heavily quilted, thick, or scented varieties take much longer to break down, which can lead to blockages. Avoid 3-ply and 4-ply options, or any brand marketed as “luxury” or “super soft,” as they typically take longer to dissolve. Popular brands that should be used sparingly (or avoided) in homes with septic systems include:

Kleenex Cottonelle: Known for its thick, quilted sheets, Cottonelle may be too dense to break down quickly in a septic tank, especially in multi-ply varieties.
Scented or Lotioned Varieties: Any brand offering scented or infused papers may contain chemicals that disrupt the septic system’s balance.

Tips for Maintaining a Healthy Septic System

Limit Paper Use: Even with septic-safe toilet paper, it’s a good idea to limit how much you flush at one time.
Flush only toilet paper: Never flush wipes (even if labelled flushable), paper towels, or other items down the toilet. These do not break down properly and can cause major blockages.
Regular Pumping: Ensure that your septic tank is pumped every 3-5 years to remove built-up sludge and prevent overflow.

Choosing the right toilet paper can make a significant difference in the longevity and efficiency of your septic system. By using toilet paper that’s designed to dissolve quickly and avoiding thick or chemical-laden varieties, you’ll help keep your septic system running smoothly for years to come.

Are you interested in learning about our concrete septic tanks? Give us a call on 08 8444 8100.

image of concrete rainwater tank on truck being delivered to site

Why Rainwater Tanks Are a Smart Investment in South Australia

Wednesday, 6 November 2024 by Ri Industries

Rainwater tanks are a smart investment in South Australia. According to abc.net.au, South Australia had the eighth driest April in 2024 since record keeping began. With water scarcity being a persistent challenge in the region, especially in rural areas, residents are increasingly looking for ways to conserve water and manage it more efficiently. One of the best investments for homeowners and businesses in South Australia is installing a rainwater tank. These tanks not only help secure water supply during dry periods but also offer financial, environmental, and lifestyle benefits.

Here’s why investing in a rainwater tank is a wise decision for South Australians.

1. Water Conservation in a Drought-Prone Region

South Australia frequently faces periods of low rainfall, making rainwater collection an important resource. By capturing and storing rainwater, homeowners can reduce their reliance on mains water supplies. Rainwater can be used for various purposes, including:

Gardening: During times of low rainfall, many households have to cut back on watering gardens and lawns. A rainwater tank allows you to keep your plants healthy and vibrant without worrying about fines or penalties.
Toilet flushing and laundry: Installing a tank with a pump system allows you to use rainwater for everyday household chores, further reducing your dependency on potable water.
Drinking water: With proper filtration, rainwater can be used as a safe and sustainable drinking water source.

Given South Australia’s limited rainfall, having a rainwater tank helps ensure that your household remains water-secure during dry spells or when water restrictions are enforced.

2. Cost Savings on Water Bills

One of the most compelling reasons to invest in a rainwater tank is the potential for significant cost savings. By using rainwater for non-potable purposes (like flushing toilets, washing clothes, and irrigating gardens), you can reduce your reliance on mains water and cut down on your water bills.

In areas with high water costs, such as Adelaide, even moderate use of rainwater can lead to noticeable savings over time. Additionally, by relying less on mains water, households are protected against future price increases or supply disruptions.

3. Environmental Benefits

Investing in a rainwater tank is an environmentally responsible choice. By capturing rainwater, you’re reducing the demand for treated mains water, which takes energy and resources to pump, purify, and transport. Using rainwater helps:

Reduce stormwater runoff: In urban areas, heavy rains often lead to water running off roofs and streets, picking up pollutants before entering storm drains and eventually the ocean. By capturing rainwater in a tank, you can help reduce stormwater runoff, protecting local waterways and reducing the burden on stormwater infrastructure.
Decrease energy consumption: Treating and distributing mains water requires significant energy. By reducing your demand for treated water, you contribute to lowering the energy footprint associated with water consumption.
Promote sustainable living: Using natural resources wisely, such as rainwater, aligns with eco-friendly practices and helps mitigate the effects of climate change.

4. Independence from Water Restrictions

South Australia is often referred to as the driest state in the driest country on the driest inhabited continent. The last imposed water restrictions were in 2020. By having a rainwater tank, you gain a level of independence from these restrictions. You can continue to maintain your garden, fill your pool, or water your property using stored rainwater without violating any water use regulations.

5. Government Rebates and Incentives

In recognition of the importance of water conservation, the South Australian government and local councils have offered incentives and rebates for installing rainwater tanks in the past. Check with your local council if any are still available. These programs aim to reduce strain on public water systems and encourage the use of alternative water sources. While rebates can vary by location and specific conditions, they often help offset the initial installation cost, making rainwater tanks an even more attractive investment.

6. Increasing Property Value

A rainwater tank can also be a valuable addition when it comes to selling your property. Prospective buyers increasingly view water conservation systems as an attractive feature, particularly in water-scarce regions like South Australia. A rainwater tank shows that the property is designed with sustainability in mind, which can be a significant selling point. This is especially true if the tank is plumbed into the home for practical use, such as in toilets or for garden irrigation.

7. Versatility in Size

Ri-Industries rainwater tanks come in four sizes to suit your property’s needs. Whether you live in a compact urban home or a sprawling rural property, we have a rainwater tank solution for you.

8. Climate Change Resilience

Climate change is expected to bring more unpredictable weather patterns, including both increased rainfall intensity and longer dry periods. Investing in a rainwater tank now helps future-proof your home against these changes. By capturing water during heavy rainfalls, you can ensure you have a supply during times of drought, making your home more resilient to the effects of climate variability.

Rainwater tanks are a smart investment for South Australians looking to conserve water, reduce their bills, and become more self-sufficient. With environmental, financial, and practical benefits, rainwater harvesting offers a sustainable solution to the region’s water challenges. Whether you’re interested in reducing your water bills, maintaining a lush garden through summer, or simply doing your part to protect the environment, a rainwater tank is an excellent addition to any South Australian home or property.

Call us to learn how a Ri-Industries concrete water tank can benefit you! 08 8444 8100

How can a Septic Tank Save you Money

Wednesday, 2 October 2024 by Ri Industries

How can a septic tank save you money? Living in South Australia, especially in rural or semi-rural areas, often means managing your own wastewater. One of the most effective ways to do this is by installing a septic tank. While the initial cost might seem significant, having a septic tank can actually save you money in the long run. Here’s how:

1. No Monthly Sewer Bills

In urban areas, households typically pay monthly or quarterly sewer bills for wastewater treatment services. When you have a septic tank, you avoid these ongoing costs entirely. This can lead to substantial savings over time, especially when considering the rising costs of utilities.

2. Lower Water Usage Costs

A well-maintained septic system encourages mindful water use. Since the septic system can only handle so much water at once, households with septic tanks tend to be more conservative with their water usage. This not only prolongs the life of the septic system but also reduces your overall water consumption, leading to lower water bills.

3. Durability and Longevity

Septic tanks are designed to last for decades with proper care. Unlike centralised sewer systems, which can require expensive repairs or upgrades, a septic tank that is regularly pumped and maintained can function efficiently for 30 years or more. This long lifespan makes the initial investment in a septic tank a cost-effective solution.

4. No Need for Expensive Sewer Connections

If you live in a remote or newly developed area, connecting to the municipal sewer system can be costly. Installation fees, pipe connections, and other related expenses can quickly add up. With a septic tank, these costs are avoided, as the system is entirely self-contained on your property.

5. Increase in Property Value

A well-maintained septic system can be an attractive feature for potential buyers, especially in areas where sewer connections are not available or are expensive to install. A septic system that is in good condition can increase your property value, making it a smart investment if you ever decide to sell your home.

6. Environmentally Friendly

Septic tanks, when properly maintained, are more environmentally friendly than many centralised sewer systems. They naturally treat wastewater on-site, reducing the strain on public treatment facilities.

7. Minimal Maintenance Costs

While septic systems do require regular maintenance, these costs are typically much lower than what you might pay in sewer bills over time. Regular pumping (every 4 years or so) and the occasional inspection are usually all that’s needed to keep your septic tank functioning well. Compared to the ongoing costs of a sewer connection, septic tank maintenance is generally more affordable.

8. Reduced Risk of Sewer Backups

Public sewer systems can sometimes become overloaded, leading to backups into homes. These incidents can be both costly and stressful to deal with. A properly maintained septic tank, on the other hand, is less likely to experience such issues, saving you from potential repair costs and water damage.

9. Customisable to Your Needs

Septic systems can be tailored to fit the specific needs of your household and property. This customisation ensures that your system is as efficient as possible, avoiding unnecessary costs. Whether you have a large family or a small household, a septic system can be designed to meet your exact requirements, ensuring you’re not paying for more than you need.

The financial benefits of having a Ri-Industries septic tank are clear. From avoiding ongoing sewer bills to conserving water and increasing property value, a septic system can be a wise investment. With proper maintenance and mindful usage, your septic tank can save you money and provide reliable wastewater management for years to come.

ri-industries