Start with a one-page system record

Before choosing treatment, draw the route your water takes: source, storage, pump, treatment and outlets. Photograph labels and write down the person responsible for each part. You do not need an engineering drawing; a readable handover sheet is useful.

Separate observations from explanations

Record what you notice and when. Is the problem in hot water, cold water or both? One bathroom or every tap? Did it start after a delivery, maintenance visit or long period without use? Keep these observations distinct from a proposed cause.

Collect the documents you already have

  • Supply or delivery records, if available.
  • Tank and pump locations and access instructions.
  • Equipment model numbers and installation dates.
  • Service invoices and replacement-part details.
  • Water reports, including sampling points and dates.

Agree who can authorize work

Renters should establish the owner’s or manager’s approval process. Owners should confirm whether a site visit includes inspection only, sample collection or work. Put the scope in writing so a technician does not arrive expecting a different job.

Plan the site visit

Give your specialist the system record before the visit. Explain access restrictions and when water use can be interrupted. Ask whether samples must be taken before any cleaning or equipment changes. Let the laboratory provide the sampling instructions.

Compare proposals on the same basis

Request the problem each component addresses, supporting test results, flow assumptions, ongoing consumables, warranty and service responsibility. Keep installation cost separate from recurring maintenance. Do not compare equipment only by the number of filter stages.

Keep the record current

Add each visit, change and report to the same folder. A future manager should be able to understand the setup without relying on a verbal handover. Start a property water check or use the manager’s checklist.

Questions worth asking

Does this guide assess water at my property?

No. It provides general context and a preparation checklist. A property-specific assessment needs appropriate inspection or testing.

What can I do without contacting a provider?

Create the free water checklist, print it and collect the records and questions described in this guide.

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.