Install Drainage In The Garden – Australian Handyman Magazine

Prevent any problems with flooding by installing discreet drains in your garden.

Badly designed or poorly installed drains, or a lack of drainage altogether, can lead to boggy spots on the lawn or even flooding.

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To avoid this, you need to have drainage in your yard that captures the water before it causes any problems.

It should run the water quickly and efficiently to a dispersion or stormwater system, but never the sewer.

With many off-the-shelf DIY solutions available, installing drainage no longer needs to be a complicated or expensive job.

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TIP A great sustainable solution for surplus rainwater from small drains is to re-use it to water other parts of the garden.

Install surface drainage

To lay this low-profile drain and dispersion system, you’ll need a stringline and set-out paint, grated drainage channels, an unslotted ag pipe, end caps, premixed concrete, silicone, a trenching shovel and rubber mallet.

Step 1. Dig a trench

Set out the location for the drain using a stringline and set-out paint. Dig a trench for the drain at least 130mm deep and about 250mm wide. TIP Use a trenching shovel to dig the trench to make it easier to create a narrow channel.

See also  Clay Soil

Install Drainage In The Garden - Australian Handyman Magazine

Step 2. Fit end caps

Attach end caps to the drain and secure them in position with silicone sealant. If necessary, cut the drain to length with a handsaw and make

a suitably sized hole for connecting it to an output pipe. Dig another trench for this output pipe.

Install Drainage In The Garden - Australian Handyman Magazine

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Step 3. Lay the drain

Mix the concrete and lay a bed in the main trench. Position the drain with the grate in place, then tamp it down using a rubber mallet, ensuring there is adequate fall towards the output end. Connect the output drain, then backfill the excavations and bring to level.

Install Drainage In The Garden - Australian Handyman Magazine

Install sub-surface drainage

For a system that catches and disperses water at its source, you’ll need a length of trench liner, end caps, drain matting and blue metal aggregate. Decorative gravel, timber edging and a drainage pipe are optional.

Install Drainage In The Garden - Australian Handyman Magazine

Local councils have very clear guidelines on drainage and handling stormwater, so if in doubt give them a call [external_footer]

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