Back Inlet Drainage Gully – PVC – Outdoor Drainage

Product Overview

The 110mm Back Inlet Bottle Gully with a rectangular grid is an essential component for effective drainage systems. Constructed from durable uPVC to meet BS EN 1401-1 standards, it is designed to intercept surface water from areas such as paved surfaces, patios, or downpipes, directing the flow into underground drainage while trapping debris at ground level.

This bottle gully features an integral water trap to prevent foul odors from venting, ensuring hygienic conditions around the installation. The back inlet feature allows for the connection of an additional 110mm pipe, facilitating multiple drainage lines into one gully.

The rectangular grid is designed to prevent leaves, litter, and other debris from entering the drainage system, and it can be removed easily to provide direct rodding access for cleaning and maintenance.

Features & Benefits

• Multiple Connections: Includes a 110mm main outlet and an optional back inlet for additional pipe connections.
• Odor Prevention: Integral water trap effectively seals the system against foul gases.
• Rectangular Grid: Prevents debris from entering while sitting flush with paved surfaces.
• Rodding Access: Removable cover offers direct access for maintenance.
• uPVC Construction: Strong, lightweight, and resistant to rot, corrosion, and ground chemicals.
• Standards Compliant: Manufactured to BS EN 1401-1 for use in foul and surface water systems.

Applications

• Patio and Driveway Drainage: Efficiently collects surface water to prevent pooling.
• Downpipe Discharge: Receives rainwater from roof downpipes into the underground system.
• Secondary Inlet Use: Connects an additional 110mm drainage pipe via the back inlet.
• Blockage Prevention: Stops debris entering the system while allowing rodding access.
• Residential and Commercial Systems: Suitable for a wide range of foul and surface water drainage layouts.

Installation Guidance

• Excavation: Bed the gully on compacted granular material.
• Connections: Attach 110mm plain-ended pipework to the main outlet and back inlet using push-fit sockets.
• Grid Placement: Seat the rectangular cover flush with paving or ground level.
• Backfilling: Surround with concrete or granular fill to prevent movement.
• Maintenance: Remove the grid periodically to clear silt or debris and ensure the trap remains effective.

Compliance & Performance

• Standard: BS EN 1401-1.
• Size: 110mm outlets with a rectangular grid.
• Type: Back inlet bottle gully.
• Material: uPVC for durability and strength.

FAQ

• Q: Can the grid be easily removed for cleaning?
  A: Yes, the grid is designed for easy removal to provide direct access for maintenance and cleaning.
• Q: Is this gully suitable for both residential and commercial use?
  A: Yes, it is designed for a wide range of drainage layouts in both residential and commercial systems.
• Q: Does the gully prevent odors?
  A: Yes, it includes an integral water trap to effectively seal the system against foul gases.