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A legal bid to stop a sewerage pipe being installed in a wāhi tapu ... Tarawera Sewerage Scheme paused about a month ago following applications to the Environment Court by groups protesting ...

The layering materials for your drains matter too. Always opt for clean, round gravel. And, for pipes, it's best you stick with high-quality HDPE pipes with well-sized perforations specific for water ...

Milliken Chemical (Spartanburg, South Carolina / USA; www.millikenchemical.com) has introduced a nucleating agent for injection moulded HDPE applications. The additive has a crystalline orientation ...