Water safety & health

Clear guidance on what your stored water may be hiding

Practical, evidence-led articles on tank contamination, algae and sediment buildup, possible health effects, and simple habits that keep household water clean.

The hidden dangers

What builds up out of sight

Pipe ingress

Contaminants can enter through vents, overflow lines, and gaps in tank lids, carrying dust and debris inside.

Sediment layers

Particles settle over time, forming a sludge at the base that can hold bacteria and reduce tank capacity.

Biofilm growth

A slick film can form on tank walls before discoloration appears, so clear water is not proof of clean water.

Possible health effects

How contaminated tank water can affect health

Microbes, including bacteria that thrive in biofilm, and chemical residues may reach taps when tank water is poorly maintained. Effects vary by person and contaminant, so a water test is the reliable way to know.

Skin irritation and stomach upset are commonly reported concerns; if you notice them, consult a health professional.

Keeping water clean

Simple habits that protect stored water

Inspect lids and screens each season, check for sediment at the base, and schedule professional cleaning as advised for your tank. Keep vents insect-proof and avoid opening tanks in dusty or wet weather.