Do Rainwater Tanks Require Maintenance or Cleaning?

Regular Maintenance Tasks

Regular maintenance tasks should be performed every 3 to 6 months, depending on the usage and storage conditions. This includes inspecting the tank for any signs of damage, leaks, or corrosion. Check the inlet and outlet screens for blockages and clean or replace them as needed. Also, inspect the roof catchment area to ensure it’s free from debris and contaminants.

Cleaning Techniques

To clean a rainwater tank, start by turning off the inlet and outlet valves. Use a submersible pump or a long-handled brush to remove any visible debris from the tank’s interior. If there are any stubborn stains or growths, use a mixture of water and bleach or a tank cleaning solution. Never use harsh chemicals or abrasive cleaners, as they can damage the tank’s coating or contaminate the water.

Suggested Cleaning Schedule

For larger tanks (over 1,000 gallons), consider dividing the tank into sections and cleaning one section at a time to avoid disrupting the entire system. For smaller tanks, clean the entire tank in one session. Always follow the manufacturer’s instructions for any cleaning products or equipment used.