Floor
Water follows the gradients formed within a shower tray, floor former or screeded wet-room floor.
- Category
Wastes, Grids & Pumps
Wet Room construction
Shower Wastes, Grids & Pumps
Gravity and pumped shower wastes, wet-room grates, Purus linear drains, wastewater pumps and specialist drainage components for shower trays, floor formers, timber floors and screeded wet rooms.
01 Floor finish Vinyl, tile or microcement
02 Grate The visible drainage opening
03 Gully / waste Collects water beneath the floor
04 Outlet Vertical, horizontal or pumped
05 Drainage Gravity pipework or wastewater pump
Gravity or pumped Choose the drainage method around the available fall and discharge route.
Horizontal or vertical Route pipework according to the space available beneath the shower floor.
Floor-finish specific Vinyl, tile and microcement require different interfaces at the drain.
Point or linear drainage Choose a compact gully or integrate a longer architectural channel.
Make the category easier to understand
Follow the water from the shower floor to the drain
Most drainage problems are compatibility problems. The grate, gully, floor finish, outlet and drainage method need to be selected as parts of the same system.
Grate
The visible grate lets water enter while providing the finished interface with vinyl, tile or microcement.
Gully
Beneath the grate, the floor gully collects the water and connects the finished shower surface to the drainage system.
Outlet
Pipework can leave vertically beneath the gully, horizontally through the floor zone or through a small-bore pumped connection.
Discharge
Gravity carries water away where sufficient fall exists. Where it does not, a compatible wastewater pump provides the movement.
Start here
Shop the drainage system by function
Start with the route water will take beneath the floor, then choose the visible grate or linear drain. Where gravity drainage is not possible, complete the system with a pumped waste, wastewater pump and compatible controls.
Waste Outlet & Drainage Method
01 Straight down Vertical / Bottom Outlet Gravity Wastes
Purus and AKW floor gullies that discharge vertically beneath the shower area where the drainage connection can be routed directly down through the floor structure.
Gravity Vertical outlet Floor formers Wet-room floors
Shop vertical wastes 
02 Side outlet Horizontal Outlet Gravity Wastes
Side-outlet gravity wastes for floor formers, trays, timber floors and screeded wet rooms where the drainage pipe needs to travel horizontally within the floor zone.
Purus AKW McAlpine Side outlet
Shop horizontal wastes 
03 Connect to a pump Pumped Wastes
Pump-compatible gullies and shower-tray wastes for installations where wastewater needs to be drawn away by a separate shower wastewater pump rather than gravity alone.
Pump compatible Floor formers Shower trays
Shop pumped wastes Floor Finish, Grates & Drain Format
04 Visible finish Grates — Vinyl, Tile & Microcement
Round and square drain covers for compatible wet-room gullies, including plastic, stainless steel, decorative, coloured, tile-insert and security-focused options.
Round Square Stainless steel Security options
Shop wet-room grates 
05 Architectural drainage Linear Wastes
Purus linear channel drainage for tiled, vinyl and microcement wet rooms, with multiple outlet arrangements, lengths and grate finishes for accessible and design-led spaces.
Purus Vinyl Tile Microcement
Shop linear drains 
06 Complete or maintain Purus Spare Parts & Accessories
Replacement water traps, clamping rings, grid adaptors, grates and installation components for maintaining or adapting compatible Purus wet-room drainage systems.
Water traps Clamping rings Adaptors Spares
Shop Purus spares Wastewater Pumps & Controls
07 Move the wastewater Shower Wastewater Pumps
AKW, Contour and Whale drainage systems for showers and wet rooms where wastewater cannot reach the main drainage connection reliably by gravity.
Whale AKW / Contour Wet rooms Shower trays
Shop wastewater pumps 
08 Detect & control Pump Accessories
Flow switches, pump switches and compatible control components used to activate, automate or complete selected shower wastewater pump installations.
Flow switches Controls Compatibility critical
Shop pump accessories The first technical decision
Can gravity move the wastewater away?
If sufficient fall can be created between the shower waste and the building drainage connection, a gravity system is normally the simplest route. A wastewater pump solves installations where that fall or route cannot be achieved.
Let pipe fall move the water
Gravity wastes connect the shower floor directly to conventional drainage pipework. Their success depends on having enough depth and gradient beneath the shower to maintain the required fall.
Fewer active components No wastewater pump is required when the pipe route can drain naturally.
Outlet direction matters Choose horizontal or vertical according to the available structure below.
Check waste depth The gully and pipe fall still need enough space beneath the finished floor.
Use a pump where gravity cannot provide the route
Pumped systems use a compatible waste connection and wastewater pump to remove shower water when conventional below-floor gravity drainage is restricted by the building.
Shallower connection options Pumped gullies can use small-bore connections to transfer water to the pump.
Requires system coordination Waste, pipework, pump, shower and controls all need to be mutually compatible.
Useful in difficult locations Particularly relevant where normal gravity discharge cannot be routed easily.
Look beneath the floor
Horizontal and vertical outlets solve different structural problems
The direction of the outlet determines where the drainage pipe has to go immediately after leaving the gully. That decision should be coordinated with joists, slab depth and existing drainage.
Match the drain to the finished surface
Vinyl, tile and microcement meet the waste differently
Floor finish is not simply a decorative choice. The drainage system needs an appropriate interface so water cannot bypass the finished surface and enter the floor construction below.
Sheet vinyl
Secure the sheet around the drain
Compatible vinyl-floor gullies and linear drains use a clamping arrangement to create a secure interface between the drainage body and the continuous safety-flooring sheet.
Tiled floor
Coordinate waterproofing, frame and tile
Tiled systems use compatible drain gaskets, adaptors, frames and grates so the waterproofing and tiled surface can terminate correctly around the drainage opening.
Microcement
Create a flush specialist finish
Compatible microcement grids and adapted linear drainage systems allow the continuous decorative floor system to terminate neatly around the drainage zone.
Point drain or linear channel?
Drainage layout affects the floor gradients above it
A traditional point waste collects water into a compact central or offset opening. A linear drain creates a much longer collection edge and can support a different approach to forming the wet-room floor.
Point wastes Compact, widely used and available across many floor formers, trays and screeded installations.
Linear drains Create a longer drainage line and a highly architectural finish suited to premium level-access wet rooms.
Choose the format early Floor falls, former design and waterproofing need to be planned around the selected drain rather than changed afterwards.
The most visible part of the drainage system
The grate is both a technical component and a finishing detail
Once compatibility with the waste and floor finish is established, the grate can also influence appearance, maintenance and security.
Shape
Round and square designs suit different drain bodies, floor systems and visual preferences.
Finish
Options across the current range include plastics, stainless steels, coloured finishes and decorative metallic treatments.
Floor integration
Tile-insert, vinyl-specific and microcement designs create different transitions between the drain and finished floor.
Security
Selected Purus systems can use lockable or tamper-resistant fixings for public, healthcare and higher-control environments.
Pumped drainage is a complete system
Four components have to work together
A wastewater pump is not simply installed beneath any shower waste. The inlet gully, pipe connection, pump and activation method must be designed as a compatible drainage chain.
Pumped waste
Receives water at the shower floor and provides the correct connection into the pumped drainage pipework.
Wastewater pump
Draws wastewater from the shower area and moves it towards a suitable discharge point.
Activation
Depending on the system, the pump may respond to a compatible shower signal, flow switch or dedicated control arrangement.
Discharge
Pump performance and pipework must suit the distance and height between the shower and the final drainage connection.
An easy distinction to miss
A pumped waste and a wastewater pump are two different products
They work together, but they perform different jobs. This is one of the most important distinctions to understand when shopping this category.
Pumped waste / gully The component positioned at the shower floor. It collects the wastewater and connects it to the pumped drainage line.
Wastewater pump The powered unit that creates the suction and movement required to transport the wastewater away.
Control / flow switch Where required, this tells the pump when shower water is flowing so the drainage system can operate automatically.
Purus drainage is modular
The drain body is only part of the assembly
Many Purus systems can be adapted around different floor finishes and maintained using replaceable traps, clamping components, adaptors and compatible grates.
Water & odour traps
Removable compatible trap inserts allow selected Purus gullies and linear drains to be serviced without replacing the complete drainage body.
Clamping rings & adaptors
Specialist components connect compatible gullies to vinyl flooring, waterproofing systems and alternative grate formats.
Replacement & upgraded grates
Compatible drains can be completed or updated with alternative plastic, stainless-steel and security grate arrangements.
Before ordering
Six things to determine before choosing the waste
Drainage is easiest to specify before the floor is built. Confirm the complete route while joists, floor formers, pipework and waterproofing can still be coordinated.
Gravity or pumped?
Establish whether sufficient fall exists from the shower to the building drainage connection.
Outlet direction
Check whether the pipe needs to leave vertically or horizontally to avoid structural obstructions.
Floor finish
Select the correct gully, clamping arrangement and grate for vinyl, tile or microcement.
Former or tray compatibility
Confirm that the waste diameter, fixing system and outlet suit the exact shower tray or floor former.
Required flow capacity
Match the drainage system to the shower output so wastewater can be removed faster than it accumulates.
Pump compatibility
For pumped systems, confirm waste connection, pump capacity, control method and discharge route as one complete system.
Do not mix drainage components by appearance alone: waste diameter, outlet depth, trap arrangement, flow capacity, flooring connection, pump fittings and grate compatibility all vary. Check the current technical information for the exact waste, former, tray, grate and pump being combined before installation.
Specify from the floor down
Choose the floor finish, waste route and drainage method as one system
Start with the tray, former or wet-room floor. Match it to the correct grate and gully, establish whether the outlet needs to run horizontally or vertically, then add a wastewater pump only where gravity drainage cannot provide the required route.
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