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Deep Well SamuiDeep well drilling & water supply on Koh Samui

Service · Koh Samui

Villa Water Systems on Koh Samui

A villa's water is a chain: well, pump, storage, filtration, pressure, plumbing. When each link is bought separately, the weakest one decides your showers. We design and build the whole chain as one system — sized from your real demand, documented, and maintained by the team that built it.

Useful to send: the property layout or plans, how many people it serves at peak, and the sources you have or plan: well, mains or deliveries.

Who this service is for

  • New villa builds that need water infrastructure designed in, not bolted on
  • Renovations where the existing system was assembled piece by piece
  • Rental villas that must hold pressure at full occupancy
  • Boutique resorts with laundry, pool and kitchen loads

How it fits together

Source to tap, as one system

Every villa system is the same chain. What differs is how big each link is and where the weak one sits.

  1. Source

    A well, mains, deliveries, or two of them with a clear priority between them.

  2. Raw-water storage

    Buffers the source's rate against the day's demand and lets sediment settle.

  3. Treatment

    Only the stages the water test calls for, sized to the villa's peak flow.

  4. Clean storage and booster

    Treated water in its own tank; one pump gives the house steady pressure.

  5. House, pool and garden

    Separate lines so the pool fill and the sprinklers never starve the showers.

Villa water plant on Koh Samui with a wellhead and a mains line feeding one storage tank and a booster pump
Illustrative image, not a photo of a specific client project.

Service · Koh Samui

Common symptoms & problems

Patchwork systems

A pump from one contractor, tank from another, filters from a shop — components that never met each other until your bathroom. We make them one system.

Storage sized for low season

A tank that suffices in June runs dry in January. High-season occupancy is the design case.

Pressure that dies upstairs

Multi-bathroom villas need delivery designed for simultaneous use, not a single household pump.

No plan for failure

Without bypasses and protection, one failed component stops the whole house. We design so failures degrade the system, not end it.

Service · Koh Samui

What we design a villa system around

Demand

Bedrooms, bathrooms, pool, garden and occupancy converted to daily volume.

Water source

An existing well and its yield, or the case for drilling one.

Pump & controls

Whether they match the well and the property's demand.

Storage

Capacity against peak use and reserve for outages.

Filtration

What a laboratory analysis says the water needs.

Pressure & plumbing

Delivery to every outlet under simultaneous use.

Service · Koh Samui

What the service includes

Demand calculation

Bedrooms, bathrooms, pool, garden and occupancy converted into daily cubic metres — the number the system is sized against.

Water source

A drilled deep well where the plot needs one, or an assessment of the source you already have.

Pump & controls

Submersible and booster pumps at the duty point, with protection for island power.

Storage sized for high season

Reserve for peak occupancy and power cuts — typically one to two days of demand.

Filtration staged to the analysis

Treatment designed from a laboratory test of your water.

Constant pressure & documentation

Stable delivery to every outlet, and an as-built pack that makes the system serviceable for decades.

How it works

  1. Assess demand

    How the villa is actually used — including December, not just the yearly average.

  2. Design the system

    Source, pump, storage, treatment and delivery designed together, quoted as a fixed itemised price.

  3. Build in phases

    Drilling, equipment and connections sequenced so each stage is verified before the next.

  4. Balance & test

    The chain is balanced end to end and tested against the design with you present.

  5. Maintain

    A service schedule matched to the system, run by the crew that built it.

Service · Koh Samui

Important technical considerations

  • Systems are sized for high-season peak occupancy, not the yearly average.
  • Hillside elevation adds head that changes the pump and pressure design.
  • A chain is only as reliable as its weakest link, so components are designed together, not bought separately.
  • Bypasses and protection let a single failure degrade the system rather than stop it.
  • Every property is used differently, so the design follows your use — not a template.

Service · Koh Samui

What affects cost & timeline

  • Whether a new well is needed or an existing source can be used.
  • Property size and the calculated daily demand.
  • Storage capacity and the number of filtration stages.
  • Pump, controls and distribution.
  • Phasing for larger properties or developments.

Site conditions vary from plot to plot, so we quote a fixed, itemised price after the site assessment — never a fixed figure beforehand.

Frequently asked questions

Can you work with the system I already have?

Yes. We assess what's installed, keep what's correctly sized and serviceable, and replace only what limits the system. A full rebuild is the exception, not the default.

How long does a complete villa system take?

A typical villa project runs around two weeks from survey to handover, depending on geology and access. Larger properties are phased and quoted with their own timeline.

Does the system cover the pool and garden?

Yes — pool top-up and irrigation are part of the demand calculation. They're also why calculations beat guesses: garden irrigation alone can double a villa's daily consumption.

What maintenance will it need?

Periodic pump and control checks, tank cleaning and filter changes — scheduled based on your system and usage. You receive the schedule at handover, and we offer service plans that follow it.

Can the well and the mains supply be used together?

Yes, and it is a good way to make a villa resilient. Both sources should fill the storage tank, with the mains arriving through an air gap above the water, and one booster pump should feed the house. Joining the two pressurised lines with a tee is the arrangement to avoid.

What keeps the water running during a power cut?

Stored water plus a way to pressurise it. A full tank covers a short outage if the booster pump has power; a generator or a correctly sized inverter on the booster, and dry-run protection on both pumps for when the power returns, cover the rest. We size this from how long outages actually last at your property.

Send us the layout and your water sources

Plans or a sketch, how many people use the property at peak, and whether you have a well, mains or deliveries. We design the whole chain (source, storage, treatment, pressure) and quote it as one system.

Send property details