5 Signs It's Time to Replace Your Old Water Tank

Cracks, stains, leaks and bad-tasting water are all telling you something. Here are five clear signs your old concrete or metal tank needs replacing.

Maintenance 8 May 2026 NEERCO Team

Concrete and metal tanks don't last forever. As they age, they can quietly compromise both your water quality and your building. Watch for these five warning signs.

1. Visible cracks or seepage

Hairline cracks in concrete tanks widen over time, leading to leaks, wasted water and structural damage to the slab below.

2. Rust or metallic taste

Metal tanks corrode from the inside out. A reddish tint or metallic taste means rust is entering your water supply.

3. Algae, slime or odour

Rough, porous interiors trap sediment and grow algae — a sign the tank can no longer be kept truly clean.

4. Frequent repairs

If you're patching and re-coating every season, replacement is usually cheaper over the long run.

5. The water just isn't clean

Cloudy water or recurring contamination is the clearest signal of all.

The modern fix

A GRP or SMC panel tank solves every one of these problems — corrosion-free, food-grade and built to last 25+ years. Talk to NEERCO about a clean, lasting replacement.

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