Water Test Strips for Calcium
Use these water test strips to check in on the calcium carbonate level of the water used in your espresso machine. This packet comes with a scale spectrum so that you can easily compare and differentiate between soft and hard water levels.
Soft water has 5ppm (parts per million) of calcium carbonate or less. Please ensure your reservoir water meets these needs to prevent machine failure. Evidence of calcium carbonate will void any applicable warranty.
The packet contains 50 test strips.