vti on aim 21 june, page-6

Hey, Wanchoi, where did you learn your stuff? Certainly not in the sewerage business. Hardly any sewerage plants use alum to remove phosphorous. Some do, but not many. Perhap you are confusing with fresh water treatment, where its use is common. You are also way off the mark on the "mates" issue. In fact, you haven't got a clue have you? To say no one will go for it because of the price is just plain ignorant. Two just have and another biggy is looking at it. What does that say about your rubbish views. Check your facts before posting in future.