10 Best S Trap Toilets Of 2026
S Trap Toilets — Reviews, Recommendations & Updated Buying Guide September 2026
Bottle Trap Wash Basin Bathroom
おすすめの理由
Floor Mounted Smart Toilet with
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Lagoa Italiano One Piece Toilet
おすすめの理由
EWC P Trap Floor Mounted White
おすすめの理由
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10 Best S Trap Toilets Of 2026
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Bottle Trap Wash Basin Bathroom Sink Waste Trap Drain Tube 1 1/4" - Made in UAE
Floor Mounted Smart Toilet with 250mm S-Trap,Auto Flush, Heated Seat, Bidet Function & Dryer
WC Toilet S-Trap With Pp Seat Cover,Dual Flushing Toilet Bowl,Ceramic Floor Mounted Water Closet Fit for Modern Bathroom White (695 * 360 * 790mm)
Lagoa Italiano One Piece Toilet Model 5035 S-Trap White | Non Syphonic Flush, 225mm Trap Size, Complete Set, Ceramic Closet, Modern Design
EWC P Trap Floor Mounted White Closet Toilet
購入ガイド: S Trap Toilets
📋 目次
1What are the key differences between S-trap and P-trap toilets?
S-trap toilets have a curved pipe that connects directly to the floor drain, while P-trap toilets use a U-shaped pipe that connects to a wall drain. S-traps are less common today due to potential sewer gas issues, whereas P-traps are more effective at sealing odors and are preferred in modern plumbing codes.
2What water efficiency rating should I look for in an S-trap toilet?
Look for toilets with a WaterSense label, which guarantees at least 1.28 gallons per flush (gpf). Older S-trap models may use 3.5 gpf or more, so upgrading to a WaterSense-certified model can save thousands of gallons of water annually and reduce utility bills.
3Are S-trap toilets suitable for all types of homes?
S-trap toilets are typically used in older homes with floor drains, but they may not be allowed in newer constructions due to building codes that favor P-trap systems. Check local plumbing regulations before installation, as some areas have banned S-traps for odor and maintenance concerns.
4What materials are best for the trap portion of an S-trap toilet?
Cast iron or durable PVC are the most common materials for S-trap pipes. Cast iron is heavier and more durable but can corrode over time, while PVC is lightweight, resistant to corrosion, and easier to install. Choose based on your home’s existing plumbing and long-term maintenance needs.
5Can I install an S-trap toilet myself, or should I hire a plumber?
Installing an S-trap toilet requires proper alignment with the floor drain and sealing to prevent leaks and odors. While some DIYers may attempt it, it’s generally recommended to hire a licensed plumber to ensure compliance with local codes and to avoid costly mistakes that could lead to water damage or sewer issues.
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