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—Building a new pool

The first fill and start-up of a new pool

The first fill is when a construction project becomes a pool. How it is filled and started affects the finish and the equipment.

When finishes are complete and cured, the pool is filled. The water source might be the villa supply or a delivered tanker, depending on volume and time. Filling is done steadily, and the level is watched against the waterline tiles and skimmers. Once full, the equipment is started: pumps primed, filters checked, valves set, and any heating, cooling or chlorination commissioned.

Construction guides follow a new pool from the first idea to the first swim, so each stage is easier to plan and to question.

The first water balance matters, particularly for new plaster finishes, which can be affected by unbalanced water in the early weeks. The pool is checked for leaks, unusual noises and correct operation. The owner is shown how the equipment works and what early care the finish needs.

01Summary

What matters most here

  • Fill steadily

    Watching levels and fittings.

  • Commission equipment

    Pumps, filters and controls.

  • Balance early

    Especially with new plaster finishes.

02Detail

Start-up steps

  • Water source

    The villa’s mains supply works for most pools but can take a long time; a tanker delivery fills faster, and the choice may depend on volume and the finish’s needs.

  • Priming and valves

    Pumps primed and valves set.

  • Commissioning

    Heating, cooling and chlorination started and checked.

  • Handover

    How to use the controls and what to watch.

03Before you start

At handover

  • Ask for manuals

    For each piece of equipment.

  • Learn the valves

    And how to isolate equipment.

  • Note the waterline

    To spot level changes.

—In practice

How to use this

Agree the water source and filling method, and make sure finishes have cured as their manufacturers require. Watch the level during filling and stop if anything leaks. At start-up, ask the contractor to show you how the equipment works — valves, pump settings, controls — and to leave written settings, a simple flow diagram and the manuals.

Mistakes worth avoiding

Filling before finishes are ready
Tile adhesives, grout and plaster have curing requirements. Filling too early can weaken them and shorten the finish’s life.
No written handover of settings
Without written settings, the next person to touch the plant has to guess how it was meant to run.

04FAQ

Common questions about this

How is a pool filled?
From the villa supply or by tanker, depending on volume and timing.
Why does early water balance matter?
New finishes, especially plaster, can be affected by unbalanced water.
Should I swim straight away?
Once the water is balanced and the equipment checked.
Who looks after it after start-up?
Agree routine maintenance arrangements before handover.
Is it normal for the level to drop at first?
Some loss to evaporation is normal. A drop much faster than nearby evaporation should be reported before handover.

05Read next

More pool guides on this

Filed under new pool construction. Every pool guide is listed on the pool guides page.

—NEXT

Nearing the first fill?

Ask us what start-up will involve for your pool.

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