Polypropylene soakwell delivery in Perth

Have you heard of Polypropylene Soakwells?

If you are considering installing your own soakwells, trafficable polypropylene soakwells have many advantages over pvc and concrete soakwells for most residential projects.

Using this product will save you time, money and effort without compromising on function or quality.

Read on to see why...

 Try our soakwell calculator!

Fully Trafficable

Polypropylene soakwells are trafficable and suitable for use under driveways, carparks, concrete, paving and grass.


Join them together to form a single soakwell of the required volume that fits in your available space.

The Most Efficient Drainage

60% of the total surface area is void providing more area for drainage than the equivalent size concrete soakwell.

Easier in every way

Polypropylene soakwells are lightweight and easy to install. They can be arranged to fit in places a concrete soakwell cannot. Great for restricted access.

Affordable and Quality

Cheaper to buy and cheaper to install with no compromise in product quality or safety.

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Our Company Polson & Brown Pty Ltd, trading as DIY Soakwells and All About Soakwells, has been supplying and installing concrete and polypropylene soakwells for the residential and commercial construction industries for over 10 years!

Visit our site 'All About Soakwells' for a pricelist for polypropylene soakwell installation.

DIY Soakwells can also add markup to your plans for the piping and soakwell layout to make the job easier.

Plan with soakwell markup by DIY Soakwells.
Within 40km of Perth! Orders under $200.00 are $25.00 delivery.

Order Trafficable Polypropylene Soakwells
All prices include GST and are correct as of Monday the 28th of May, 2018

130 litre Polypropylene Soakwell

130 Litre Polypropylene Soakwell

Trafficable and easy to assemble.

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$39.95 inc. GST

140 litre Polypropylene Soakwell

140 Litre Polypropylene Soakwell

Interlocking, Trafficable. Easiest to install.

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$49.95 inc. GST



High permeability and strength.

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Cut to suit, based on soakwell configuration.

Stormwater Piping and Fittings
All prices include GST and are correct as of Monday the 28th of May, 2018

6m Stormwater Pipe. 90mm

6m U-PVC Pipe. 90mm

One male, one female end. Take advantage of free delivery.

$15.95 inc. GST

90° F&F Elbow. 90mm

90° F&F Elbow. 90mm

Use for each corner, under every downpipe and the soakwell inlets.

$1.90 inc. GST

90° x 45° Y Junction. 90mm

Y Junction. 90mm

Use in place of a T with a 45° M+F bend to make a 'T' shaped Y junction for great flow.

$5.95 inc. GST

45° M&F Bend. 90mm

45° M&F Bend. 90mm

Use with downpipe adaptors and turn Y-junctions in 'T' shaped Y junctions.

$3.85 inc. GST

45° F&F Bend. 90mm

45° F&F Bend. 90mm

These can be useful for shortcuts around corners. Be sure your trench is at 45°.

$1.95 inc. GST

T Junction. 90mm

T Junction. 90mm

Recommended to use Y-junction and M&F 45° for junctions, handy for vertical connections.

$4.95 inc. GST

Slip Coupling. 90mm

Slip Coupling. 90mm

Useful when you need to join pipe or are adding to existing pipework.

$4.95 inc. GST

Downpipe Adaptor

Downpipe Adaptor

Use with 45° M+F. Ensure your system has one grate to act as an overflow.

$3.95 inc. GST

Offset Finishing Collar and Grate. Black

Offset Grate. Black

The offset on the grate makes it easier if your footings protrude.

$8.95 inc. GST

Non-Pressure PVC Cement

Non-Pressure PVC Cement

Be sure to glue your fittings. Fast set, PVC cement. 500ml.

$8.95 inc. GST

PVC Tape

PVC Tape

PVC tape, good for holding geotextile fabric in place if you don't have a staple gun.

$7.95 inc. GST

Staple Gun

Staple Gun

Used to secure the geotextile to the polypropylene soakwells.

$24.95 inc. GST




Great Service

Questions? Call 08 6406 2112.
We can add markup to your plans.
Established 2009.
Soakwell Calculator.

Easily Order Online

Save over $1000 on new homes!
Only the best quality materials.
Easy to use Secure Website.
Payment on Delivery.

FREE Delivery

Free Delivery up to 65km from Perth.
We ship nationally as well!
Free for orders over $200.00.
$25.00 if under $200.00.

Onsite Consultation

Help locating underground services.
Help with Soakwell Placement.
Soakwell Assembly Instruction.
Timesaving Installation Tips.

The highest quality polypropylene soakwells in the world.
Bar none.


To find out the number of soakwells needed based on your roof area click:

For more information on our trafficable polypropylene soakwells in the shop click:

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To add items to the cart in the shop click:  

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We will contact you within 24hrs to discuss the details of your order and arrange delivery. You will be emailed a final invoice after delivery with bank account details. Payment can be made online by bank transfer or credit card.


This website is designed to equip you with the knowledge to make an informed decision when purchasing polypropylene soakwells for your home or extension.

DIY Soakwells™ supplies and delivers polypropylene soakwells, geotextile fabric, U-PVC stormwater pipe, fittings and accessories in Perth, Western Australia.

When you order from us you also receive great service and comprehensive on the job advice on all aspects of the installation.

We specialise in polpropylene soakwells. Polypropylene soakwells offer strength, efficiency and ease of installation. We supply all the necessary materials for your stormwater project, from the polypropylene soakwells to the piping and fittings.

Delivery is free for orders over $200.00 from Yanchep to Baldivas ($25.00 for orders under $200.00) and includes one on one instruction on the assembly and installation of the soakwells plus advice on piping if required.


Our general advice on purchasing the correct stormwater system is to calculate the volume of the soakwells based on the roof area (catchment area) and the formula for predicted rainfall during a storm from your local or nearby council.

If you are looking for a price for polypropylene soakwell supply AND installation click here for a pricelist.


When choosing a location, the soakwells should be at least 1.5 - 1.8m from footings and boundaries, depending on your council. Never start digging until you know where all your underground services are (sewer / gas / power / water / phone / fibre etc).

You can contact Dial Before You Dig for free to find out about the underground services on public land and we have some tips for you as well.


To maximise the area in contact with the sand and take advantage of the design, polypropylene soakwells are ideally installed in rows in only two or three locations.

This is important because downpipes can take different amounts of water from the roof at different times due to the fall of the gutters, direction of the wind/rain or maintenance issues.

We always aim for just two locations, a row of polypropylene soakwells at the front and back of the house. This is dependent on factors including available space and the location of underground services as well as the distribution of roof area.

  Tip!  Halve the number of 140 polypropylene soakwells to find out the total length!
eg. 12 soakwells = 6m long (W x 0.5m, D x 0.9m).


For the piping, walk around your house and draw a rough plan of the boundary, house perimeter, downpipes and proposed soakwell locations.

Pace out the length of pipe required from the furthest downpipe to the soakwells. The fall for the pipe is 100mm for every 10 metres. Cut a hole in the top of the soakwell for the pipe. Make sure you glue the fittings and pipe.

A simple approach is to measuring and digging is to only use 90° elbows for corners, for junctions we recommend Y-junctions with M&F 45° bends to create a Y shaped T for optimal flow.

You should use grates under the downpipes to prevent water rising up the downpipes in any situation and to allow the system to breathe for optimal flow. Some exceptions could be undercover or wooden areas.

 Tip! - The inlets are cut into the top of the soakwell for easy access.


Don't forget you will have the sand displaced by the soakwells at the end. To estimate the amount take the total volume of the polypropylene soakwells and add another 30%. We have some tips on how to deal with this as well.

Please consider 
 if you found this information useful.


Make the hardest part of the job easier. At just 700mm wide, you CAN fit an excavator back there!

DIY Soakwells recommends installing your  soakwells in rows , in as few locations as possible.  Our tiny 1t excavator , with custom made 600mm bucket is perfect for the job.

  Taking you places you never thought you could go!
Pickup or Delivery available.


  • Easy to operate, no license required in Western Australia.
  • This mini excavator can withdraw it's tracks to become just 700mm wide!
  • With a folding, removable rollcage this machine becomes just 1.79m tall.
  • Dig up to 1.71m deep.
  • Equipped with a 180mm bucket (shovel sized), 350mm toothed bucket and 600mm mud bucket perfect for soakwells.
  • Push sand around with the 860mm blade.
Hire a mini excavator in Perth


  • 24 hr hire, you pick up and drop off:
    $250.00 plus GST
    Suitable vehicle and tow bar required.
  • 24 hr hire, we pick up and deliver:
    $325.00 plus GST
    Yanchep to Baldivas.
  • Excavator hire with an operator:
    $95.00 /hr plus GST
    Minimum 3hr hire.
  • Also available for hire is our compacter:
    $100.00 plus GST
    24hr Hire.
Our mini excavator is the smallest in Perth.