CLIENT BRIEF: I want to reuse the water from my kitchen, bath, shower and laundry at my Piha batch and get it clean enough for irrigating my vege patch. PROBLEM SOLVED: A sand filter which passes the waste water through four stages of medium for a clean green eco friendly watering system. This unit was one of our first custom built sand filters, built to the clients requirements and installed on his local property at Piha Beach, West Auckland. If you are looking for a custom built sand filter, grey water filter call PFP09.