Just a little breakdown for anyone starting the Balling-lite system.
When mixed correctly, you will get the following concentrations of salts per litre of RO water:
Ca: 400g/ litre = 2.5ml/gram
Mg: 400g/litre = 2.5ml/gram
kH: 100g/ litre= 10ml/gram
From the balling calculators, this then translates into the following:
Ca: 1 ppm = 0.9175ml/ 100 litres tank water
Mg: 1ppm = 2.09ml/ 100 litres tank water
kH: 0.1kH = 3.052ml/ 100 litres of tank water
Ca: 1 ppm = 0.9ml/ 100 litres tank water
Mg: 1ppm = 2.1ml/ 100 litres tank water
kH: 0.1kH = 3.1ml/ 100 litres of tank water
This now makes it very simple to figure out how much to dose!!!
First, you need to determine your tanks uptake of Ca, Mg and kH. Do not add any Ca, Mg or kH supplements whilst you are doing this, or perform a water change!!
Take an initial measurement of these 3 parameters on Day 1.
Then several days later, measure these 3 parameters again. Note that if you only have a small loss per day, the variability of the test kits you use could have an effect on your estimated loss per day, and you may need to measure over a longer period. (eg. Mg test kit has an accuracy of approx 20ppm, so just measuring the same water again and again, could produce a result +/- 20ppm, without any loss!)
You should now have 2 measurements to determine your loss per day.
As an example, assuming a 500 litre tank:
Day 1: Ca = 450ppm, Mg = 1200ppm, kH = 8
Second Measurement 2 days later:
Ca = 430ppm, Mg = 1180ppm, kH = 7
So, loss over 2 days is as follows:
Ca = 450 – 430ppm = 20ppm
Mg = 1200 – 1180ppm = 20ppm
kH = 8 – 7 = 1kH
To calculate daily loss:
Ca = 20ppm/ 2days = 10ppm/day
Mg = 20ppm/ 2 days = 10ppm/day
kH = 1kH/ 2days = 0.5kH/day
From above:
Ca: 1 ppm = 0.9ml/ 100 litres tank water
Mg: 1ppm = 2.1ml/ 100 litres tank water
kH: 0.1kH = 3.1ml/ 100 litres of tank water
To calculate your daily dose:
Ca: 0.9ml x 5 (tank volume/100litres) x 10 (daily loss from above) = 45ml/day
Mg: 2.1ml x 5 (tank volume/100litres) x 10 (daily loss from above) = 105ml/day
kH = 3.1ml x 5 (tank volume/100litres) x 5 (daily loss from above) = 77.5ml/day
This will enable you to “focus in” on your target parameters, and with small adjustments over a few weeks, you should be able to maintain your parameters at the desired level.
And that’s it!!! Hope this helps anyone that has struggled with balling light!!




