The alkalinity reserve pills are suitable for all kinds of testers. Thanks to these pellets, you measure the alkalinity value of the water. This product contains 100 pellets. 1 pill is good for one measurement.
Check the values of your water regularly, preferably weekly. The ideal alkalinity is between 100 and 150 mg/l. More information can be found in this blog. You can increase or decrease the value by adding these products.