Fast answers to water problems
Find the cause first, then dose chemicals. A clear guide for green water, foam, odour, pH, filtration, metals and running costs.

Green pool water
What to do immediately, how to recognise algae and when filtration is the real issue.

Foam in a hot tub
Cosmetics, biofilm, filter condition and organic load. When anti-foam helps and when water replacement is better.

Brown or rusty water
Usually iron from a well or metal contamination. A calm process without chemical chaos.

Chlorine smell
A strong smell often means chloramines, not clean water. What to measure and how to correct it.

pH, chlorine and alkalinity
A quick guide to safe values for pools and hot tubs and the right order of adjustment.

After a storm or holiday
How to recover water after heavy load, filtration downtime or a week without regular care.

Hot tub odour
Biofilm, old water, filters and pipework. When adding disinfectant is no longer enough.

When not to bathe
Situations where it is better to measure, treat the water or wait after dosing chemicals.
