Struggling with cockroaches crawling from floor drains or persistent sewer smells? The problem isn’t just poor cleaning—it’s your drain design. Cockroach trap drains create engineered barriers that block pests and odours while allowing water to flow freely, making them essential for ground-floor flats, hotels, and commercial washrooms.
What Makes Cockroach Trap Drains Different?
Unlike standard floor drains, cockroach trap drains feature integrated trap mechanisms—water-filled bowls or mechanical flaps—that physically prevent pests and sewer gases from entering through drainage lines.
Two Core Protection Systems:
- Water Seal: Standing water creates an airtight barrier blocking methane, hydrogen sulfide, and drainage gases
- Physical Barrier: Internal walls and strategic inlet/outlet positioning stop cockroaches and insects from climbing up pipes
Three Essential Cockroach Trap Designs
1. Single Bowl Trap (Standard Protection)
A removable stainless steel bowl maintains a permanent water layer that blocks odours and pests between uses. Water fills the bowl first, then overflows to the drainpipe, leaving a residual seal.
Best For: Regular residential bathrooms with daily use where water won’t dry out.
2. Double Bowl Trap (PR-117 Series)
Two internal chambers provide redundant protection and superior debris management. Hair and solids settle in the outer bowl while the inner bowl maintains a stable water seal.
Key Advantages:
- Even if outer bowl dries, inner bowl often maintains the seal
- Easy removal for periodic deep-cleaning
- 0.5mm bowl thickness, 1.2mm tray in SS 304/202
Best For: High-traffic hotel washrooms, gym showers, mall restrooms, and commercial facilities with heavy use.
3. Auto-Close Trap (PR-109 & PR-151)
The most advanced design adds a gravity-operated flap that mechanically seals the drain when water stops flowing. This provides fail-safe protection even when water evaporates completely.
How It Works:
- At Rest: Flip lid stays closed, blocking drain mechanically
- During Use: Water pressure opens flap for drainage
- After Use: Gravity closes flap, restoring dual seal
Best For: Ground-floor flats near sewer lines, hotel guest bathrooms with intermittent use, and offices with weekend closures.
Quick Selection Guide
| Application | Recommended Solution | Why |
|---|---|---|
| Ground-floor apartments | PR-109 Auto Close | Mechanical backup prevents pest/odour infiltration from municipal sewers |
| Hotel guest rooms | PR-109 or PR-151 retrofit | Ensures odour-free rooms even after days of vacancy |
| Staff areas & heavy use | PR-117 Double Bowl | Two-stage seal handles frequent cleaning and debris |
| Malls & airports | PR-117 heavy-duty variant | Robust construction resists high footfall and vandalism |
| Existing drain upgrades | PR-151 modular bowl | Drop-in retrofit without floor demolition |
Why Cockroach Trap Drains Are Essential
Permanent Pest Control
Unlike sprays or gels requiring re-application, integrated trap mechanisms provide passive, chemical-free protection 24/7. In multifamily buildings, sealed traps prevent drainage systems from becoming pest highways between units.
Odour Elimination
Ground-floor properties and intermittent-use facilities face constant sewer gas pressure. Auto-close and double bowl designs maintain protection throughout dry periods, eliminating the #1 bathroom complaint in hotels and commercial spaces.
Hygiene & Safety
Stainless steel construction (SS 304/202) resists corrosion and bacterial growth. Smooth surfaces enable effective chemical disinfection—critical for hotels, hospitals, and food-service areas where a single pest sighting triggers violations.
Installation Best Practices
When specifying Pridel cockroach trap drains:
- Match trap type to usage pattern (auto-close for intermittent use, double bowl for heavy traffic)
- Verify 75-100mm floor depth clearance
- Ensure trap flanges integrate with waterproofing systems
- Plan accessible locations for bowl removal and maintenance
Why Choose Pridel Cockroach Trap Drains?
✓ Graded material options (Elite/Ultra/Premium) for every budget
✓ Modular designs making maintenance faster and less expensive
✓ Auto-close technology providing fail-safe protection when seals dry
✓ Complete size range from 127×127mm residential to 150×150mm commercial
Protect Your Property—Permanently
The right cockroach trap drain eliminates odour complaints, prevents infestations, and protects your reputation. Whether retrofitting a ground-floor flat or specifying drains for a new hotel, Pridel has the engineered solution.
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