Most people we speak to claim they have never had their rainwater tank cleaned, and claim the water comes out fine; just slightly tinted in colour or with a slight eucalyptus taste. What happens over time is that leaves and debris enter the tank and begin to de-compose like compost on the bottom of the tank, turning the water a dark coffee colour. This, in turn, greatly affects the drinking quality and health factor of the water. If there are and water-first flush diverters fitted to the inlet of the rainwater tank, many things commonly enter the tank such as:
Modular Tanks
Galvanised Tanks
Polyethelene Tanks
Fibreglass Tanks	Large Concrete Tanks	Underground Tanks

WARNING!

Entering a rainwater tank is illegal unless the individual and/or company is licensed to enter a confined space to the standard AS/NZS 2865:2001 and has been issued with the appropriate entry permit.

All employees of The Tank Doctor® are fully licensed and qualified to perform tasks within a confined space under the company license number: A-07-C0675.

We strongly recommend that you request any tank cleaning company to produce their license and entry permit when on site and that they are appropriately insured otherwise you may be held liable for any problems that may occur.