Aquastab is natural limestone mined locally in the Western Cape. Also known as Calcite or Calcium Carbonate, it is a natural way of elevating the pH and alkalinity of slightly acidic or soft water. Most ground and surface water in the Western Cape is mildly corrosive to metals and or concrete and requires stabilization. Rainwater is also soft and therefore corrosive and should also be stabilised.
Mineral deficient water will naturally absorb minerals when in contact with limestone. Sufficient contact time is required for this process to happen. To achieve this, limestone is best installed into a reservoir in infusion bags or in a filter vessel on a recycle loop. Typically we recommend 25kg limestone per 500L of treated water storage capacity.
Aquastab is recommended for treating water with relatively low iron and manganese content and >6 pH. Alternative products and methods of stabilization should be used for more aggressive waters. Iron rich waters should first be treated through an iron removal filter. Caustic lye (Sodium hydroxide) or soda ash (Sodium Carbonate) can be dosed prior to an iron removal system improve its performance and to stabilize the water.
Aquastab is certified by the CSIR as being suitable for potable water treatment. It is also usefule for managing KH in Koi ponds.
Recommendations:
Rinse excess dust from the limestone prior to placing it in a tank or vessel. This will avoid excessive turbidity (cloudiness) in your water. Cloudiness will disspate after a day or two.
What's in the box
1 X25kg Bag Limstone Pebbles
