Salon backwash plumbing needs to be planned around the chosen wash units, their positions and the available services. A row of basin symbols on a plan is not enough information to set out the connections.
Before first fix, give the equipment supplier and appointed installer the same drawing. Confirm the model, the reference point used for each position, the finished floor level and how the connections will remain accessible once the furniture is fitted.
Choose the unit before fixing the pipe positions
Collect the current technical drawing and installation instructions for every model being ordered. Include its basin, mixer, waste arrangement and any powered accessories. Ask which fittings are included and which must be purchased separately.
For example, REM lists pre-plumbing and a flexible waste with its Aqua backwash unit, while identifying traps as optional. That applies to that product. It does not set the requirements of another unit or prove that the existing salon services can support it.
Ask the supplier to confirm the current document revision and the installer to check it against the premises. Resolve equipment substitutions before the first-fix positions are agreed.
Use a connection schedule alongside the layout
This checklist gives the team a way to record the decisions. Add a separate line for each unit, because repeated chairs may not have identical requirements.
| Record | What to confirm |
|---|---|
| Equipment | Supplier, exact model, quantity, drawing revision and included fittings. |
| Position | Unit reference, orientation, setting-out dimensions and the agreed finished floor reference. |
| Water and waste | Manufacturer requirements, proposed routes and the installer's assessment of the existing services. |
| Access | Space to install, inspect, isolate and maintain the connections after fit-out. |
| Interfaces | Floor finishes, plinths, furniture, wall linings and any separately designed electrical work. |
| Decision | Outstanding question, person responsible and the work that depends on the answer. |
Check the whole route, including the hidden parts
The installer needs to assess the whole proposed supply and drainage arrangement as well as the connection immediately below the basin. Discuss the available routes, existing installations, access for investigation and any permissions needed before alterations.
England's Approved Document H covers foul-water drainage. Your arrangement needs its own design and site assessment. A generic pipe size, fall or pressure copied from another salon is no substitute.
If equipment has powered features, identify the supplier's electrical requirements and appoint the relevant specialist. Keep electrical and plumbing positions coordinated with the same equipment drawing.
A small layout change can affect several trades
Say a salon moves its end wash unit to make more room beside a cupboard. This is a planning example, not a completed Vayton project. The new position should be checked against the drainage route, connection access, chair movement and the proposed flooring before it is released for construction.
Record the revised position on the drawing and withdraw the superseded instruction. Otherwise the plumber may work from one layout while the furniture installer receives another.
Agree what first fix and handover include
List who supplies the equipment, receives deliveries, positions the units, makes final connections, carries out the relevant checks and repairs disturbed finishes. Agree how the salon's operation and any planned shutdown will be managed.
Keep the equipment instructions, agreed layout, connection schedule and handover information together. For a salon refurbishment in London, send us the postcode, existing photographs, proposed layout and equipment list. We can then discuss the building-work package and specialist interfaces.