FloPlast and Clark-Drain Inspection Chamber Set - 800mm Depth - D450MH3

Name: FloPlast and Clark-Drain Inspection Chamber Set - 800mm Depth - D450MH3
Brand: FloPlast
SKU: qqj5vlijid
Availability: InStock

Complete 450mm diameter inspection chamber set including one base section, two 235mm sectional ris...

Best current price£134.21from Professional Building Supplies

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Floplast And Clark-Drain Floplast Inspection Chamber Set With Square Cover - 450Mm Diameter

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B&QB&Q - 450mm Inspection Chamber Set With 560mm Square Cover And Frame800mm Depth

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Product Information

Full details

The FloPlast and Clark-Drain D450MH3 inspection chamber set is an ideal solution for homeowners and professional contractors looking to install reliable, load-rated drainage access in domestic driveway settings. This complete system offers an 800mm depth with high-strength construction, though users should note that significant height adjustments require additional risers or careful manual cutting to match specific ground levels.

All features

Model Part Number	D450MH3
Brand	FloPlast

Extended Product Information

FAQs

What is the maximum depth for this chamber?

The standard set is 800mm, extendable to 1200mm with D916 risers, or up to 3m with a CLKS499 access restrictor.

Can this be installed in a garage floor?

Yes, provided the load-rating requirements do not exceed 35kN and the floor construction supports the weight of the frame.

Are the side inlets always open?

No, the side inlets are sealed with integral, removable blanking plugs that can be opened as needed.

What is the clear opening size?

The set provides a 450mm clear opening.

How do I secure the cover?

The cover features a dual locking mechanism that should be tightened using the appropriate tools after installation.

Can I use this for non-domestic traffic?

The 35kN rating is specifically tested for domestic driveway applications; it is not recommended for heavy commercial or public roadway traffic.

Troubleshooting

Cover is not sitting flush with the driveway surface

Adjust the frame tilt up to 15 degrees to compensate for ground unevenness or adjust the riser height if the unit is too high.

Inlet pipes do not align with the side inlets

Verify that the base section is correctly oriented and that all unnecessary inlets remain sealed with the integral blanking plugs.

Pros and Cons

Pros

High load rating of 35kN suitable for domestic driveways
Adjustable frame compensates for up to 15 degrees of slope
Modular design allows for easy height customization
Removable blanking plugs offer flexible inlet configuration

Cons

Requires additional D916 risers for depths exceeding 800mm
Manual cutting of risers requires precise measurement tools
Installation requires standard drainage excavation experience

Setup, Compatibility & Care

Installation should begin by ensuring a stable, compacted base for the chamber. The risers can be cut if a lower depth is required, but must be cut squarely to ensure a watertight fit with the seals. If your site requires a deeper installation than the provided 800mm, you must integrate compatible D916 risers. For applications deeper than 1200mm, a CLKS499 access restrictor is mandatory to maintain structural integrity. Regularly inspect the dual locking mechanism to ensure it remains free of debris, and keep the cover clear of heavy obstacles that could potentially exceed the 35kN rating during installation.