At the AGM, PHK advised they have already done one reservoir for...

At the AGM, PHK advised they have already done one reservoir for Melb Water. They are waiting to see how it goes through the current algae season. If it works, then all of these problems will be fixed with Phoslock. If melb Water is in this position, it shows that there just doesn't seem to be any other fix. It is close to a monopoly once the product is accepted.
The MD has moved over to run the prawn business. THe results out of the first one show why, he must know what is happening. There are who knows how many prawn farms all around Asia and all seem to have algae which kills prawns once it takes hold