WATER TESTING PEN
Would you like a free loan of a water testing pen?
H2O is offering you the chance to try one of these amazingly accurate water quality testing pens that give you a reliable and accurate summary of what's in your tap water.
We have a number of pens that we are happy to loan for free (including postage).
How it works
The process is simple:
Step 1: Complete your details below.
Step 2: We'll send your pen (subject to any wait list).
Step 3: Complete your test.
Step 4: Upload your results to our results page.
Step 5: Return your pen in the pre-paid envelope within 14 days.

About the pen
The Linshang Water Quality Tester is an advanced water testing device that measures three things:
1. TDS: Total Dissolved Solids: inorganic salts, principally calcium, magnesium, potassium, sodium, bicarbonates, chlorides, and sulfates and some small amounts of organic matter that are dissolved in water.
2. Chemical Oxygen Demand: shows how well the water has been treated.
3. TOC: Total Organic Carbon shows total amount of carbon in organic compounds in pure water