Sentinel X100 Quick Test System Water Test Kit
Sentinel X100 Quick Test System Water Test Kit.
1. Add system water to the tube, filling to the bottom of the
translucent band below screw thread.
2. Add one of each tablet.
3. Cap tube and shanke to dissolve.
4. Wait 10 minutes.
5. Hold tube horizontally over white band and compare
to yellow colour.
6. Deeper or same depth of colour- system treatment OK.
7. Lighter than yellow band - add central heating inhibitor and re-test.