Pedicure chair plumbing: what the room has to provide first

The chair itself is rarely the problem. What goes wrong is the room it arrives into: a supply that stops short of the basin, a drain with no fall, a trap behind a fixed panel, a floor that has to be raised so that the door no longer clears it. Each of those is a building decision, and every one of them is cheaper before the screed than after it.

Order of works, and why the drain comes third

The sequence in the diagram is not a preference. Survey first, because the measurements decide everything after it. Supply and drain next, because both are buried or boxed in and neither can be moved once the floor and the wall finish are closed. Electrics follow, because a wet zone has its own rules about where a socket may sit. Commissioning is last, because it is the only stage that proves the other four were done properly.

Supply: pressure, isolation and hot water

A pedicure basin needs a supply that still holds its pressure when the salon is busy, which makes the second and third chair on the same branch part of the same calculation. A single chair tested on its own says nothing about a row of four chairs on a Saturday.

• The pipe size at the branch, and everything else that draws from it.
• A local isolation valve within reach, not behind the chair.
• The hot water temperature at the furthest basin, measured while two others run.
• A check valve or backflow arrangement, to the local plumbing code.
• The connection point on the chair, and whether the supplied hose reaches it.

Ask for the connection size and the flow the chair needs, and put both on the drawing. They are per data sheet, and they change with the basin and the jet arrangement rather than with the frame.

Drain: fall, trap and access

The drain is where most pedicure bays fail, because it is decided by the floor rather than by the furniture. A basin drains by gravity, so the trap has to sit below the basin outlet and the run has to fall toward the stack. A floor that is dead level, or a basin set into a solid plinth, leaves room for neither.

Access is the second half of the same decision. A trap boxed in behind a fixed panel cannot be cleared, and a blocked trap in a pedicure bay is a closed bay until it is. Draw an access panel, size it for a hand and a bowl, and put it where a technician can reach it without moving the chair.

Floor level and the step the client feels

A raised floor is common in pedicure areas because it carries the drain and the supply. It also creates a step that a client in sandals meets on the way to the chair, and a step in a wet room is a trip. Where the floor is raised, put the step at the entrance to the wet area rather than at the chair, with a nosing and a finish that reads as a change of level rather than as a mistake.

Electrics in a wet zone

Every pedicure chair carries something that needs power: a pump, a light, a heater or a massage motor, and often all four. The socket arrangement follows from where the chair sits, not from where the nearest wall socket happens to be, and in a wet zone the distance rules decide the position before the layout does.

Put the circuit and the socket positions on the same drawing as the plumbing, so that the two trades do not chase each other into the same short length of wall.

What the drawing has to settle

What to send with the enquiry

A pedicure chair quotation can be a specification rather than a guess, if the enquiry carries five things with it.

• The room plan with the basin positions and the stack marked.
• The floor build up, and whether it can be raised.
• How many chairs sit on the same supply branch.
• The hot water source and its distance from the furthest chair.
• The access route, because a chair that cannot reach the room waits in a corridor.

This page sets out what the room has to provide. Connection sizes, flow and drain positions are confirmed on the data sheet and at quotation, because they change with the basin, the jets and the local plumbing code.