12/29/2023 0 Comments Instaling NovaUse non-punched coil when you simply want to transport water through the pipe. This coil has slots in it that allow the groundwater to seep in. ‘Punched’ coil is an option for the sections that require drainage. To begin, add a layer to the bottom of the trench as a bed for the drain coil.Ĭentral Landscapes stock two sizes in Novaflo drain coil – 65mm and 110mm. You can use drainage metalor scoria to fill the trench either material will work well. Without this barrier, the coil with clog up over time. ![]() You can add Geo-textile fabric to the floor and sides of the trench to stop soil and grit seeping into the drain coil. Use a spirit level and a string line to check that you have sufficient fall in your trench, to ensure the water will flow in the right direction. Cut the top layer of turf carefully into square sections so that you can re-lay the lawn later. This type spade allows for ‘levering’ even the most compacted soil, which is an easy way to excavate the area. Centrals stock a handy trench spade for this very purpose. (If you are laying new paving, this is an ideal opportunity to install drainage below the paving).Ī trench is typically 200mm wide and between 200 to 400mm in depth. Ideally, you should aim for a straight trench that avoids obstacles such as tree roots or concrete paths. ![]() ![]() You need at least a one per cent slope on the drain coil for the water to flow sufficiently. You’ll want to run the drain from the area that is prone to flooding - to a lower point on your property. Step 1 – Identify where to lay the field drain Installing a simple field drain beneath lawn areas can help eliminate excess water on your property and minimise those boggy patches.Ĭentral Landscapes stock everything you need for a DIY drainage project, including: The rain has finally come to Auckland in bucket loads-great for the dams but not so great if your garden lacks good drainage.
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