Your Guide To The Different Types Of Drainage Systems

types of drainage systems

When it comes to managing water around your property, having the right drainage setup is absolutely essential. Whether you’re building new, renovating, or just trying to stop soggy patches in the yard, knowing the types of drainage available can save you from major headaches later on.

Drainage issues are common across coastal, suburban and rural areas alike – especially during heavy rain or storm events. From simple surface runoffs to more complex underground setups, understanding your options can help you make informed choices – and keep your property:

  • Safe
  • Dry
  • And compliant.

Why drainage matters

Poor drainage doesn’t just look bad – it can lead to structural damage, erosion, and even foundation problems. It can also cause grass to die, attract pests, or create slip hazards around your home. In fact, Gold Coast blocked drains can often be caused by poor drainage system design.

That’s where modern stormwater drainage systems come in. They’re designed to move excess water away from buildings, hardscapes, and vulnerable areas, preventing long-term damage and improving safety.

Let’s break down the types of drains commonly used in residential and light commercial properties.

1. Surface drainage systems

These are the first line of defence against water build-up, designed to collect and redirect rainwater from the ground surface. They’re especially useful in areas with heavy rainfall or poor natural runoff.

Common Surface Drain Types

Swale Drains: Shallow, grassy channels that help guide water across sloped land. Swales are great for slowing water flow, reducing erosion, and encouraging absorption.

Gravel Trenches: Similar to French drains but without pipes, these are filled with gravel to provide a path for water to flow away from problem areas.

Trench Drains: Long, grated channels typically used in paved areas like driveways or patios. They capture surface water and funnel it into a drainage outlet.

Slot Drains: A more discreet version of trench drains, with a narrow opening and no grate. Popular in areas where a sleek look is desired, like pool decks or outdoor entertaining areas.

2. French drains

A popular choice for managing water at or just below ground level. French drains consist of a sloped trench lined with gravel and a perforated pipe to collect and redirect water.

They’re ideal for moving water away from house foundations, garden beds, or retaining walls. If you’ve got consistent soggy soil or basement dampness, this type of drain is often the go-to fix.

3. Point drains

Point drains collect water from a single location – think of the floor drain in your shower or the drain at the bottom of a stairwell.

They’re installed at the lowest point of a sloped surface and work best when runoff needs to be captured at a specific spot. Point drains are often found in garages, patios, or near entryways where pooling tends to occur.

4. Subsurface drainage systems

These systems sit below ground level and manage water that builds up in the soil. They’re especially helpful in clay-heavy areas or on properties with high water tables.

Common subsurface drain types

Tile Drains: Perforated pipes installed beneath the soil surface to lower the water table. Common in agricultural and landscaped areas.

Deep Well Systems: Vertical wells fitted with pumps, used to manage groundwater in flood-prone or low-lying properties.

Horizontal Drains: Long runs of buried pipe used to intercept water across a wider area, usually in larger developments or sloped blocks.

Vertical Drainage: Often used during construction, this system uses a series of wellpoints to quickly lower the groundwater level on a site.

5. Urban drainage and stormwater systems

In built-up areas, managing large volumes of stormwater is a major priority. Urban systems are typically designed to carry both storm runoff and wastewater away from properties via underground pipe networks.

There are two primary types of storm water drainage system:

Combined Systems: Where stormwater and sewage are carried in the same pipe network.

Separate Systems: Where each has its own dedicated infrastructure, reducing overflow risks during heavy rain.

You might also come across detention basins or retention ponds in your area – these are engineered features designed to store runoff temporarily and release it slowly to prevent flash flooding.

6. Sustainable drainage systems (SuDS)

As more homeowners look for environmentally friendly solutions, Sustainable Drainage Systems (SuDS) are gaining popularity. These systems mimic natural water cycles, slowing down runoff and improving water quality.

Popular SuDS include:

Permeable Paving: Allows water to seep through and drain naturally into the ground.

Rain Gardens: Shallow garden beds with hardy plants that absorb and filter stormwater.

Green Roofs: Vegetated rooftop systems that retain and slowly release rainwater.

Constructed Wetlands: Larger-scale systems that treat and manage water using natural processes.

If you’re exploring different types of drains for a new build or a renovation, incorporating SuDS elements can help meet council sustainability targets and improve the look and function of your outdoor spaces.

7. Yard drainage solutions

Your backyard may need its own dedicated types of yard drains to stay dry and functional. This is especially true if your land slopes towards your home or has compacted soil that prevents water from soaking in.

Popular yard drainage systems include:

Channel Drains: Like trench drains, but designed for gardens or softscape edges.

Dry Creek Beds: Decorative rock-lined features that double as runoff pathways.

Pop-Up Emitters: Connected to underground pipes, these release water onto the surface when pressure builds – a neat solution for redirecting water away from garden beds or paths.

Choosing the right drainage setup

With so many types of drainage systems available, the best option depends on:

  • Your land’s slope and soil type
  • The size of your property
  • Rainfall patterns in your region
  • Council requirements or stormwater codes
  • Existing infrastructure (eg. where water can legally discharge).

The most effective approach is often a combination of drain types, designed to work together:

  • Surface drains for immediate runoff
  • Subsurface systems for soil saturation
  • And targeted point drains for trouble spots.

Leave it to the experts

While some basic drainage features can be installed by homeowners, most systems – especially anything involving excavation, pipework, or stormwater redirection – require a fully licensed professional. Bear in mind that strict local regulations across Queensland mean certain work must be carried out by a qualified plumber or drainage contractor.

YOUR DRAINAGE PROBLEMS, SOLVED!

Get an obligation free quote from the drainage speicalists today.

Need help choosing the right drainage system?

Here at Drain Masters Plumbing, we design and install effective, council-compliant drainage systems across the Gold Coast and Tweed Heads region and beyond – from French drains to full stormwater drainage solutions, upgrades and much more. Whether you’re dealing with pooling water, yard erosion, or just want a new or better setup, we can definitely help.

Reach out today for expert advice and a free quote.

Related Posts