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Professional Building Supplies£121.73Visit shop Floplast Inspection Chamber Riser - 235Mm Depth X 450Mm Diameter - Pack Of 4
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B&Q£158.31Visit shop B&Q - Inspection Chamber Riser Pack Of 4235mm Depth X 450mm Diameter
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The FloPlast Inspection Chamber Riser (D910) is designed for professional contractors and DIYers needing to extend the depth of drainage access points for FloPlast D900 series chamber bases. These 235mm-tall risers provide a modular, reliable way to reach required pipe invert levels while maintaining a watertight seal, though users must be mindful of the 1200mm maximum depth rule for compliance with building regulations.
| Model Part Number | D910 |
|---|---|
| Brand | FloPlast |
They are specifically designed for FloPlast D910, D900, and 6D900 chamber bases.
Yes, you can trim the risers to your specific requirements using a fine-toothed hand saw.
No, each riser comes with its own integral rubber seal located in the bottom groove.
You are required to install a CLKS499 chamber reducing ring to ensure compliance with current building regulations.
The risers have a standard diameter of 450mm.
Apply a small amount of pipe lubricant to the rubber seal to help the riser slide into position.
Remove the riser, check the rubber seal for damage or debris, and ensure it is fully seated in the bottom groove before re-aligning.
You must use the CLKS499 reducing ring at the 1200mm mark to remain compliant with building regulations.
To install, clear the area around your chamber base and ensure the base is level. Fit the first riser over the base, ensuring the integral rubber seal is correctly seated in the bottom groove. If adding multiple risers, follow this same process, ensuring each connection is flush. If the total depth from the base to the cover exceeds 1200mm, you must incorporate the CLKS499 chamber reducing ring to comply with building regulations. For maintenance, periodically inspect the chamber cover and risers for any shifting in soil or signs of water leakage, especially after periods of heavy rain.
