Instructions for use, and initial dosage guidelines.

Product Functions:

• Algicide.
• Removes and disinfects the biofilm which forms in pipes, canals and water systems without causing corrosion.
• Prevention of infection of water systems by water born bacteria such as legionella, yersinia, shigella, salmonella, cholera and coliform bacteria.
• Disinfection of water systems contaminated by water born bacteria such as legionella, yersinia, shigella, salmonella, cholera and coliform bacteria.

Dosage Guidelines:

Depending on the quality of the water being treated, the ratio at which Bacsan Solution is dosed into the water can vary from 1:1000 to 1:500000. The active ingredients of Bacsan Solution form a precipitate as they react with bacteria, algae and dissolved solids etc, and therefore become used up. Dosing should be carried out in such manner as to achieve optimum residual levels of active ingredients once the initial precipitation reaction has taken place. The maximum copper and silver ion concentrations of 1.00mg/l and/or 0.05mg/l respectively should not be exceeded. The dosage of this ionic solution needs to be properly assessed, designed and maintained as part of an overall water treatment programme. The Water Supply (Water Quality) Regulations and Private Supply Regulations prescribe a maximum value for the level of copper, zinc, silver and nitrate ions in drinking water supplies. It is important that users of this solution are aware of the need to avoid any breach of these regulations and maintain copper, zinc, silver and nitrate ions below the maximum allowable concentration. It should also be noted that high concentrations of dissolved solids will precipitate the ions out of the solution, and that this ionisation process is pH sensitive and it is difficult to maintain the ion concentrations above pH 7.6. The concentration of dissolved solids and pH therefore needs to be carefully controlled so that suitable ion levels are consistently maintained. Oxidants may be added to the water to enhance the effects of the ions in the water. Initial dosage ratios for different raw water qualities are recommended as follows;

1. Treated water which is potable but where there is a build up of biofilm in the pipes, canals and reservoirs or where there is a risk if bacterial or algal infestation; 1 litre of Bacsan per 150000 litres of water to be dosed directly into the flow via dosing pump.
2. Use in conjunction with existing treatment methods such as chlorination or Ozone treatment will result in significant reductions of total costs due to the synergy between the different methods, as well as considerable reductions in chlorine residual content in the treated water; 1 litre of Bacsan per 200000 litres of water to be dosed directly into the flow via dosing pump.
3. Untreated water with a total dissolved solids (TDS) content of less than 500 mg/l and a total bacterial count of less than 40000 per 100ml; 1 litre of Bacsan per 100000 litres of water to be dosed directly into the flow prior to entering clarifiers or settling tanks, via dosing pump.
4. Untreated water with a total dissolved solids (TDS) content greater than 500 mg/l or a total bacterial count greater than 40000 per 100ml; 1 litre of Bacsan per 75000 litres of water to be dosed directly into the flow prior to entering clarifiers or settling tanks, via dosing pump.
5. Once the above dosages have been applied the treated water needs to be reassessed to establish if the desired result has been achieved and the dosage is then to be altered accordingly. Both the treated and the raw water must be assessed on an ongoing basis as the raw water quality may fluctuate and therefore necessitate the dosage ratio to be altered accordingly.