Water Related Questions

Doulton answers commonly asked questions related to TDS, pH value of drinking water, temporary & permanent hardness, water flow rate in water filters.

Why does the TDS of my drinking water slightly increase when I use my ceramic filter?
TDS is a measure of total dissolved solids in the water.  A slight increase in TDS will be due to the presence of the natural and the harmless  mineral Woll...
Tue, 7 Sep, 2021 at 5:00 PM
Why does the pH of my drinking water increase when I use my ceramic filter?
The slight increase in the pH of water passed through the ceramic filters is due to the presence of the mineral Wollastonite in the ceramic water filter. Wo...
Tue, 7 Sep, 2021 at 5:02 PM
What is the difference between temporary and permanent hardness in water?
Hardness is caused by the presence of positively charged metal ions. Total hardness is measured as the equivalent of milligrams per litre of calcium carb...
Tue, 7 Sep, 2021 at 5:03 PM
Which minerals will my Doulton filter leave in my filtered water?
Your water's mineral content will depend on where you live. Doulton and British Berkefeld water filters will leave healthy minerals in your filtered wat...
Tue, 28 Sep, 2021 at 8:26 PM