Testing Your Water Supply

To test the hardness of your own water supply, all you will need is a sealable container (capable of holding water) and some Palintest® test tablets (we recommend at least 15). Alternatively, you can phone us on 01440 761500 and we can send you a testing pack containing everything you need.

• First fill a container with about 50ml of water from your tap.
• Add one tablet and seal and shake the container until the tablet has dissolved.
  Continue to add tablets as before until the colour changes from, red to dark blue.
• Count the amount of tablets used and then refer to the chart below to associate it
  with the programme for the AT 210. A is the softest water and D is the hardest.

No. of tablets	Hardness Setting
1	A
2	A
3	A
4	A
5	A
6	A
7	A
8	B
9	B
10	C
11	C
12	D
13	D
14	D
15	D