WATER *  TEA *
These are chlorine tablets, with the active ingredient being sodium dichloroisocyanurate. You are directed to add one tablet to every 25lt of water when filling the tank. This is a good measure against contaminated water, but when added to our tank water in the correct ratio it was extremely unappetising, giving the water a strong odour and aftertaste and making the water unappealing to drink. The tea was likewise unpleasant.
We tested Aqua Clean Tabs as part of a test of 9 water tank treatments, which you can read here