Start with the intended job

Tank cleaning is a defined maintenance job that needs appropriate access, equipment and return-to-service planning. Do not enter a tank or improvise a disinfectant recipe.

Prepare a property-specific brief

Ask the contractor to distinguish inspection, cleaning, disinfection, repairs and any sampling in the quotation. Decide who arranges downtime and the alternative supply. Afterward, retain the service record and instructions for returning the system to its intended use.

Questions for the proposal

  • What is included and excluded from the visit?
  • How is access managed safely?
  • What happens to stored water and cleaning waste?
  • Which checks and records are provided afterward?

Compare like with like

Compare the complete work scope and handover record, not a price per tank without context. 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.

Questions worth asking

How should I compare proposals?

Compare the complete work scope and handover record, not a price per tank without context.

Can Bali Water Check book this service?

Our current service provides information and preparation checklists. It does not book a provider, arrange a visit or sell equipment.

Sources & scope

Protect Your Home’s Water

US Environmental Protection Agency · US private-well guidance; local requirements must be confirmed in Bali

Retrieved 2026-09-07 · US government guidance, linked as general context; not Indonesian regulation.