SA health recommends rain water tanks to be cleaned every 2-3 years, in some cases more often! Our cleaning process involves using pumps to vacuum the sludge off the bottom of the tank, water is required for this but we use as minimal as possible. These images show the thick layer of sludge that accumulates on the floor of your tank being vacuumed out
Melody Young —
The attention to detail and the quality of workmanship exceeded my expectations. Thank you for taking the time to complete