We have been using Sheerwater for over 25 years. You can't get this advice and quality of service anywhere else. Often they talk you out of buying certain chemicals during the water tests unless you absolutely need it. You expect the prices to be a bit higher than Bunnings or KMart, but they can't offer any useful advice. E.g when your pool is green or cloudy. Getting it right first time is far cheaper than trial and error going it alone.

As a long-term customer, they remember my pool volume, surface, chlorinator and history.

Probably the best customer experience of any business I deal with.