Commercial water storage tanks are designed to operate reliably for many years, but like any asset, they can develop problems over time. When early warning signs are ignored, small issues can grow into major failures — leading to water loss, contamination, structural damage, regulatory complications, and costly emergency repairs.
Facility managers in Melbourne and across Australia should understand how to recognise these issues early. Addressing problems when they first appear is far more cost-effective than waiting until the tank requires a full rebuild or replacement.
This guide explains the key signs your commercial water storage system needs immediate attention and what steps you can take to protect your asset.
1. Changes in Water Colour, Taste or Odour
1. Changes in Water Colour, Taste, or Odour
- Sediment build-up
- Sediment build-up
- Tank liner deterioration
- Bacterial or organic contamination
These changes should never be ignored. Apart from safety risks, poor water quality can also cause corrosion to accelerate.
Recommended action: Schedule professional tank cleaning to remove sediment and disinfect the internal surfaces.
2. Visible Rust, Staining or Corrosion on the Tank Exterior
Corrosion often begins quietly and progresses slowly — but once visible on the outside, the internal structure may already be compromised.
Common causes include:
- Exposure to weather and moisture
- Damaged protective coatings
- Poor roof ventilation
- Ageing materials
If rust appears near joints, bolts, ladders, or seams, it is especially important to act quickly. Recommended action: Request an assessment and consider refurbishment or recoating before structural thinning occurs.
3. Damp Areas, Leaks or Pooled Water around the Base
Even small leaks can lead to serious problems such as foundation erosion and tank wall distortion. A damp patch around the base is one of the first clear warning signs of tank failure.
Never assume “it’s just condensation.”
4. Sagging, Warped or Damaged Tank Roof
The roof protects the stored water from contamination. If it is bent, sagging, cracked, or rusted, water quality and structural integrity are at risk.
This often happens due to:
- Ageing roof panels
- Ageing roof panels
- Wind and storm exposure
- Corrosion from the inside
5. Reduced Water Capacity or Unexpected Water Loss
If the system is requiring more frequent refilling, the tank may be experiencing:
- A slow leak
- A slow leak
- Evaporation through damaged seals
- Evaporation through damaged seals
This can disrupt operations and increase running costs. Recommended action: Conduct a diagnostic assessment to identify the cause before the tank runs dry.
Why Addressing Issues Early Matters
Taking action early:
- Extends the tank’s service life
- Maintains water quality and safety
- Reduces repair and maintenance costs
- Helps avoid full system downtime
- Protects the facility against operational disruption
Delaying maintenance often leads to emergency repairs, which are far more expensive and disruptive.
Get Professional Support
Tank Inspections Melbourne by Raven Tanks Australia supports commercial, industrial, agricultural, and utility facilities across Melbourne and nationwide with:
- Commercial water tank maintenance
- Tank cleaning and sanitisation
- Structural repairs and leak restoration
- Tank refurbishment and life-extension upgrades
- Roof repair and replacement services
Our team can assess your storage system and provide a clear, cost-effective plan to restore performance and reliability.
