{"product_id":"punched-drain-coil-pipe","title":"Punched Drain Coil Pipe","description":"\u003ch2\u003ePunched Drain Coil (No Filter Sock)\u003c\/h2\u003e\n\u003cp\u003ePunched drain coil (also known a Novacoil or Ag Pipe) is a flexible, corrugated HDPE drain pipe designed to collect excess groundwater from below the surface and transfer it to a designated exit drainage point. Buried in a trench, the punched holes allow water to seep in along the full length of the pipe - not just at one end - making it far more effective than solid pipe for subsoil drainage.\u003c\/p\u003e\n\u003ch2\u003eIdeal for Gravel-Wrapped Installations\u003c\/h2\u003e\n\u003cp\u003eThis version comes without a filter sock, making it the right choice when you're wrapping the pipe in coarse aggregate or gravel as part of a French drain or similar system. The gravel acts as the filter medium, keeping fine particles away from the perforations while allowing free water movement into the pipe.\u003c\/p\u003e\n\u003ch2\u003eWhere No-Sock Drain Coil is the Better Choice\u003c\/h2\u003e\n\u003cp\u003eIn coarse, free-draining soils or gravel-backfilled trenches, a filter sock can actually restrict flow or become unnecessary. Choosing bare punched drain coil in these conditions gives you maximum inflow capacity and avoids the risk of sock degradation over time in aggressive soil environments.\u003c\/p\u003e\n\u003ch2\u003eFlexible Enough to Follow Any Ground\u003c\/h2\u003e\n\u003cp\u003eThe corrugated profile gives this drain coil excellent crush resistance underground while staying light and easy to handle on site. It bends naturally around obstacles and follows the contours of uneven ground, reducing the need for fittings and cutting installation time significantly.\u003c\/p\u003e\n\u003ch2\u003eWhere Punched Drain Pipe is Used\u003c\/h2\u003e\n\u003cp\u003ePerforated drain coil is widely used across residential lawns and gardens, retaining walls, building foundations, farmland (sheep, beef, dairy, arable, and horticultural), sports fields, golf courses, parks, and civil construction sites. It works equally well in French drain systems and mole drainage installations.\u003c\/p\u003e\n\u003cp\u003eMade from 100% recyclable high-density polyethylene (HDPE).\u003c\/p\u003e","brand":"SaveBuild New Zealand","offers":[{"title":"100m Perforated Drain Coil Pipe (110mm dia)","offer_id":48324187390109,"sku":"100M110DIADRAINCOIL","price":532.5,"currency_code":"NZD","in_stock":true},{"title":"45m Perforated Drain Coil Pipe (160mm dia)","offer_id":48324187422877,"sku":"45M160DIADRAINCOIL","price":516.5,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/5895\/5933\/files\/100m-perforated-drainage-coil-pipe.jpg?v=1779173080","url":"https:\/\/savebuild.co.nz\/products\/punched-drain-coil-pipe","provider":"SaveBuild New Zealand","version":"1.0","type":"link"}