How to Clean Inside Your Rainwater Tank
You want to ensure the rainwater collected in your tank remains clean and fresh, especially if used for washing, cleaning or drinking. Properly maintaining the water quality in your tank also extends the life of your tank pump, water filters and household appliances plumbed into your rainwater.
If you have had a rainwater tank for several years, then you may have noticed that some sediment and leaves managed to find their way into your water tank. Even with gutter guards, a rainwater diverter, leaf eaters and strainers, which all work to keep clean rainwater flowing into your tank, somehow debris find a way into your tank.
The organic matter that settles at the bottom of your tank, if not cleaned out, turns into a sludge. Part of your tank maintenance for fresher rainwater should involve cleaning out this sludge which builds up inside your tank.
The Australian Department of Health recommends that water tanks should be inspected inside every 2-3 years for the accumulation of sediments. To not clean inside your rainwater tank can allow harmful bacteria to build up causing vomiting, stomach cramps, diarrhoea and other health issues.