One of the most common mistakes when buying a toilet in Kenya is ordering the wrong trap configuration. Fitting a toilet with the wrong outlet type to your existing plumbing means a leaking joint, a refund trip, or expensive replumbing. This guide explains the difference between P-trap and S-trap toilets, how to identify which one you need, and also covers chrome bottle traps for basins and sinks.
What Is a Trap?
A trap is a curved section of pipe that holds a small amount of water at all times. This water seal blocks sewer gases (methane, hydrogen sulphide) from entering your home through the drain. Every toilet, basin, shower, and sink in Kenya must have a trap — it is a basic plumbing requirement.
P-Trap vs S-Trap: The Key Difference
P-Trap
Outlet direction: Exits through the wall horizontally
Shape: Looks like the letter "P" on its side
Used in: Upper floor apartments, bathrooms with horizontal wall drains
Common in: Modern apartments, hotels, multi-storey buildings
S-Trap
Outlet direction: Exits through the floor downwards
Shape: Looks like the letter "S"
Used in: Ground floor homes, maisonettes, standalone buildings
Common in: Traditional homes, bungalows, standalone bathrooms
How to Tell Which Trap You Have
Look at where your existing toilet's waste pipe disappears:
- If the pipe goes into the floor — you need an S-trap toilet
- If the pipe exits into the wall behind the toilet — you need a P-trap toilet
- If you are building new — confirm with your plumber which configuration they are plumbing for before purchasing
P-Trap and S-Trap Toilet Products at Ziann Africa
WC P-Trap Toilet
Complete close couple toilet set with P-trap waste outlet. Wall exit drainage — ideal for upper floor apartments and modern builds in Nairobi and Kenya.
View PriceWC S-Trap Toilet
Complete close couple toilet set with S-trap floor outlet. The standard choice for Kenyan ground floor homes, maisonettes, and traditional construction.
View PriceWhat Is a Chrome Bottle Trap? (For Basins & Sinks)
A bottle trap (also called a pea trap or chrome trap) is a type of drain trap used under wash hand basins and kitchen sinks — not toilets. Unlike a standard U-bend, a bottle trap has a cylindrical body (like a bottle) that makes it more compact and far more aesthetically pleasing, especially when the pipework is exposed under a countertop basin or designer sink.
Chrome bottle traps are particularly popular in Kenya for:
- Countertop basins where the drain is visible below the basin
- Wall-hung basins where there is no vanity unit to hide the pipework
- Designer and minimalist bathrooms where exposed chrome pipework is an aesthetic feature
- Pedestal basins as an upgrade from standard white plastic traps
Chrome Bottle Trap
Polished chrome finish bottle trap for wash hand basins. 32mm and 40mm options available. Includes wall outlet elbow. Compatible with standard basin waste outlets.
View PriceDrainage Fitting Price Guide — Kenya 2026
| Product | Price (KES) | Application |
|---|---|---|
| P-Trap Toilet (Complete Set) | KES 8,000 – 18,000 | Apartments, wall-exit drain |
| S-Trap Toilet (Complete Set) | KES 8,000 – 18,000 | Homes, floor-exit drain |
| Chrome Bottle Trap (Basin) | KES 1,200 – 3,500 | Wash hand basins, countertops |
| Standard Basin Trap (White) | KES 350 – 800 | Budget bathrooms, concealed installations |
Frequently Asked Questions
Can I use a P-trap toilet where I have an S-trap drain?
No — you must match the toilet trap to your existing plumbing outlet. Using the wrong type creates a poor seal, potential leaks, and improper drainage. Always confirm with your plumber before ordering.
What is a chrome bottle trap used for?
Chrome bottle traps are used under wash hand basins (not toilets) to provide the water seal that prevents sewer gases entering your bathroom. They are preferred when the trap is visible, as the chrome finish looks far neater than standard white plastic U-bends.
Where can I buy a P-trap or S-trap toilet in Nairobi?
Both P-trap and S-trap toilet sets are available at Ziann Africa, Waiyaki Way 87 Junction, Westlands — or order online at ziannafrica.co.ke. We deliver countrywide across Kenya.
Unsure which trap configuration you need? Send us a photo of your existing drain on WhatsApp 0768 282 934 and our team will advise you before you buy.