S-Trap or P-Trap? How to Identify Your Toilet Drainage Before Upgrading to a Smart Bidet

•  Buying a smart toilet is an exciting upgrade, but choosing between an S-Trap (Floor Drainage) and a P-Trap (Wall Drainage) is the difference between a seamless installation and a plumbing nightmare. Here is our simple guide to help you identify yours in 3 minutes.

Step 1: Look at the Waste Pipe

• S-Trap (Floor Drainage): The waste pipe goes vertically down directly into the floor. The pipe is often hidden under the base of the toilet.

• P-Trap (Wall Drainage): The waste pipe exits horizontally from the back of the toilet and goes into the wall. You will see a thick pipe connecting the toilet to the wall.

Step 2: Measure the "Rough-in" Distance To ensure your new BBbidet fits perfectly, you need to measure the "Rough-in":

• For S-Trap: Measure from the wall to the center of the drain hole on the floor (usually 305mm or 400mm).

• For P-Trap: Measure the height from the floor to the center of the waste pipe on the wall (Commonly known as High-level or Low-level in HK).

Why Choose BBbidet Regardless of Your Drainage?

 No matter your bathroom layout, BBbidet offers models equipped with our signature Aero-infused SPA Wash and Defecation Aid Technology. We bring luxury hygiene and health support to every home, ensuring a larger, gentler, and more effective cleaning experience.

3. Still Unsure? Let Us Help!

If you are still confused, just take a photo of your current toilet (side and back view) and send it to the BBbidet Customer Service Team. We will identify your drainage type and recommend the perfect model for you!

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