Septic tank manhole extension collar, 60 cm

Description

Septic tank manhole extension collar – 60 cm

The 60 cm extension raises the manhole when the tank cover needs to be brought to a more accessible level after underground installation. It allows the height of the inspection point to be adjusted when the tank geometry and fixing system are compatible.

What is the extension for?

When a septic tank is installed, the final position of the cover depends on burial depth and landscaping. A compatible collar helps keep access for inspection, maintenance and emptying, without improvised modifications to the tank. It is chosen by the manhole diameter and type of connection, not just by height.

• Nominal height: 60 cm.
• Use: raising access to the septic tank manhole.
• Appearance: black plastic; confirm the exact material and model from the batch documentation.
• Diameter, joint type, sealing and compatibility: confirmed for the existing septic tank model.
• The extension does not change the burial limits, permitted loads or ventilation conditions set by the manufacturer.

Compatibility and installation

Before installation, identify the make and model of the septic tank, the inner/outer diameter of the manhole and the type of connection. Not all septic tanks use the same fixing system. Installation must maintain safe access and the sealing required by the manufacturer. For trafficked areas or difficult ground, structural solutions approved for the site are required.

Frequently asked questions

Does it fit any septic tank?

No. The diameter, shape and fixing system must be checked.

Is the extension height enough for any depth?

No. The 60 cm is the nominal height of the part; the permitted installation depth remains that set by the tank manufacturer.

Does the extension include the cover?

Whether the cover is included must be confirmed in the quote. The photo shows the extension element.