Very successful
"Excellent so far. I have applied three doses so far at about 10 day intervals. I am impressed with the progressively improving water clarity. This is in conjunction with back washing the filter every seven days or so, as I carried out major vegetation removal a couple of months ago which disturbed a vast quantity of sludge. VI Back wash before applying the solution. I hope to reduce the treatment to monthly as we head into autumn and the winter months."


