Posted by Luke Quentel, on July 10, 2024.
Discolouration is to do with the introduction of impurities into the tank. So with the collection of rainwater off a roof, or potentially if you’re collecting rainwater off a surface, like a patio or pavement, you are channeling that water down into the collection device. Now, depending on how clean that surface is, you’re introducing impurities. It could just be dirt and grits. It could be oil if it’s coming off a car park. With the introduction of these impurities, you are going to discolour the water in the tank. The tank itself, the water that’s in there, should remain clean if the catchment area is clean. So it’s only by introduction of the catchment area that water will become discoloured in the tank.