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Indoor pool with a raised spa, dark porcelain tiles and coloured stag heads lit in wall niches

Case study · Indoor pool & raised spa

The White House.

An indoor pool and raised spa in dark metallic porcelain, with a plant room built to keep both crystal clear.

The project

A Pool Room
With Character.

The White House is a pool room with real character. Dark porcelain planks with a metallic finish line the pool and the spa, three coloured stag heads glow in their own lit niches along the wall, and a pale stone surround keeps the whole space from feeling heavy.

Underneath the looks, the pool and the spa run as two separate systems. Each has its own pump, filter and water treatment, sized for the way it gets used, so the spa stays fresh even after a busy evening and the pool barely needs thinking about.

Three coloured stag head sculptures in lit niches above an indoor pool and raised spa

01

Drawn Up Before We Dug.

Every dimension was set out on a detailed drawing before work started on site. The pool measures roughly 10.3m by 5.1m and runs from 1.1m at the shallow end to 1.8m at the deep end, with five evenly spaced steps for an easy, confident way in.

The spa sits in one corner, raised above the floor at 2.0m by 2.5m. Raising it gives it presence in the room and makes it easy to step into, while the shared tile and coping tie it back to the pool so the two read as one design.

Raised spa wall in dark metallic porcelain tile with a light stone coping

02

A Finish That Sets The Mood.

The pool and spa are lined in large porcelain planks with a dark, metallic look, laid in a staggered pattern. The same tile wraps the outside of the raised spa, so it looks carved from the same material rather than added later.

Under the lights the tiles shift from charcoal to deep steel blue, which is what gives the water its colour. A light stone coping and surround frame the edges and stop the dark finish swallowing the room.

Underwater view of spa jets running

03

Two Systems, Each Sized Properly.

The pool holds around 60m³ and the spa just 2.8m³, so treating them as one would never have worked. The pool runs on a Badu Delta variable speed pump and a Calplas 720 filter, turning the whole volume over every six hours. A Besgo valve automates the backwash.

The spa has its own Astral Victoria variable speed pump and Contabric 750 filter, pushing its entire volume through the filter roughly every 15 minutes. That fast turnover is what keeps a hot, busy spa clear.

Both filters use AFM glass media and are sized to run at a gentle 25m³/m²/hr, which gets the best out of the media. Flow meters on both systems show at a glance that everything is running as it should.

Pool lights glowing on a dark tiled pool wall under water

04

Water Treatment That Runs Itself.

The pool is disinfected by hydrolysis, controlled by a DA-Gen system, so there's far less chemical to buy, store and handle. The spa uses chlorine, measured and dosed by a Kuntze Neon controller.

pH is corrected automatically on both. The result is water that stays balanced day after day, without anyone testing and topping up by hand.

Black slatted pool cover closed over an indoor pool

05

A Cover That Disappears.

A black slatted cover closes over the pool when it isn't in use. It keeps heat in the water and humidity out of the room, which cuts running costs, and in black it blends straight into the tiles when it's closed.

Specification

What's In
The Plant Room.

The full filtration and treatment spec for the pool and the spa. Every figure here was worked out before any kit was ordered.

The White House filtration and water treatment specification
ItemPoolSpa
Volume60m³2.8m³
Turnover360 minutes15.3 minutes
Filtration area0.4m²0.44m²
Filtration flow10m³/hr11m³/hr
Filtration rate25m³/m²/hr25m³/m²/hr
Backwash flow20m³/hr22m³/hr
Backwash rate50m³/m²/hr50m³/m²/hr
PumpBadu Delta VSAstral Victoria VS
Flow meterYesYes
FilterCalplas 720Contabric 750
Filter mediaAFMAFM
ValveBesgo (automated)Manual
DisinfectionHydrolysisChlorine
Chemical controlDA-GenKuntze Neon
pH correctionAutomatic pH minusAutomatic pH minus

The film

See It
In Person.

A walk round the finished pool room.

The White House: a walk round the finished pool room0:54

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Gallery

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