Whole-house filtration in Bali: what to ask before you agree

Start with the intended job

Whole-house describes the part of a property served by a system. It does not identify a treatment process or certify every tap as drinking water. Start with the intended outlets and the findings the proposal aims to address.

Prepare a property-specific brief

Give the designer a realistic occupancy and simultaneous-use brief. Ask for a diagram showing bypasses, storage and any separately treated drinking outlet. Keep the original analytical report separate from the sales proposal so another specialist can review the same starting information.

Questions for the proposal

• Which outlets and branches are covered?
• What is the design flow during simultaneous use?
• What happens during service or a fault?
• Which exact claims apply to each component?

Compare like with like

Compare complete system diagrams and recurring responsibilities, not simply the number of stages. Keep the quote date, included work, exclusions and responsibility for follow-up in writing. Ask who handles a change in performance after handover and what evidence they will need.

Keep the next step practical

Read the related guide and create your free water checklist. We do not currently introduce providers or promise availability. You choose and commission any professional separately.

The linked source supplies general context. It is not a recommendation of a particular Bali supplier, a local price survey or a certification of an installed system. Our comparison questions are editorial preparation suggestions.