When should I use an anti-syphon or resealing trap?

Generally, the waste pipe or discharge pipe from an appliance is beyond the limitations of an unvented waste pipe. Usually more critical on the basin and bidet Wastes.

What is the difference between an anti-syphon trap and a re-sealing trap?

A re-sealing is designed to allow air to pass through the water seal under negative pressure but will retain sufficient water. An anti siphon trap has a small mechanical valve which opens under negative pressure.

Why does water not run away in my shower?

If it is not due to the obvious reason of a blockage caused by a buildup of debris, the problem could be due to back pressure within the discharge pipe.

What is the maximum thickness of bath that your bath fillers can be installed on?

The maximum thickness of the bath is 20mm and unfortunately, we do not make an extension ferrule to extend that length.

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Screened Tank Breather 1½" TWLFBR

Product ID: 329832275

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Details

Brand
Mcalpine
Item dimensions L x W x H
9.4 x 11 x 11
Number of ports
2
Manufacturer
McAlpine

⚙️Compact 1½" size

🌬️Optimal airflow

🛡️Durable screened protection

Description

🌬️ Keep your tanks breathing easy — because every detail counts!

SCREENED DEFENSE - Keeps debris and insects out with a fine mesh screen for long-lasting tank health.
COMPACT POWERHOUSE - 1½" size fits seamlessly into standard tank fittings without bulky modifications.
CLASSIC RELIABILITY - Trusted McAlpine craftsmanship designed for professional-grade storage solutions.
LIGHTWEIGHT EFFICIENCY - At just 131g, it adds minimal weight while maximizing performance.
BREATHE EASY WORK SMARTER - Ensures consistent ventilation to prevent pressure build-up and tank damage.

The McAlpine Screened Tank Breather 1½" TWLFBR is a lightweight, durable ventilation accessory designed to maintain optimal airflow in storage tanks. Featuring a fine mesh screen to block contaminants, it prevents pressure build-up and extends tank lifespan, making it an essential upgrade for professional-grade tank maintenance.

Specifications

Manufacturer	McAlpine
Part Number	TWLFBR
Product Dimensions	9.4 x 11 x 11 cm; 131 g
Item model number	TWLFBR
Style	Classic
Special Features	Breathable
Batteries included?	No
Batteries Required?	No
Item Weight	131 g

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