“As test strips go these are as good as any. Colour matching not brilliant but does indicate variation. I have found on a few occasions the felt indicator pads fall off the backing strip into the tub during dipping.”
Hi Charles, many thanks for your feedback. We always aim to provide good quality products. Sometimes the issues you describe are indicators for an underlying problem. Bleaching of the test pad colours can occur when chlorine levels are high, also the indicator pads should not be touched as the results can be affected by this. Finally test strips should literally be dipped and immediately removed from the water as over-soaking my affect the result or cause the pads to separate. These may not be the causes of the issues you experience, but we hope this advice might help. Check out this handy video guide to using these test strips. https://youtu.be/YhAcS6DhBew Regards, the Castle Hot Tubs team.
