Septic Tank Hydro Crates

Image of septic tank plastic soakaway crate

Plastic crates to fill soakaway hole for a septic tank.
Please use the Delivery Zone Checker on the right of the page to look up your delivery zone before ordering.
Sales price £35.00


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These plastic crates have been designed as an alternative to gravel or other free-draining material used to fill a soakaway trench.  Being much lighter than gravel they are easier to transport and handle and can be easily removed if your soakaway is temporary.  

Measuring 1000mm x 500mm x 400mm, three laid end to end creates a 3000mm x 500mm x 400mm soakaway suitable for use with our Cube septic tanks where the ground has average to good drainage conditions.

They are also ideal for use with regular septic tanks.  As a rule, and assuming average to good ground drainage conditions a 1-2 bedroom house requires 8 crates, a 3-4 bedroom house requires 10 crates, a 5-6 bedroom house requires 12 crates and a 7-8 bedroom house requires 14 crates.

Use our Geotextile Wrap to prevent surrounding soil from entering the crate void.

Rated at 62 tonnes m2

Max. 12 to a pallet.  Deals available for bulk orders - please get in touch for details.

Delivery - Please read before ordering:

The cost of delivery for your septic tank soakaway crates will depend on what zone the delivery postcode is in.  Please use the Delivery Zone Checker on the right of the page to look up your delivery zone before ordering.

Zone 1 - £75
Zone 2 - £85
Zone 3 - £115
If your Delivery Zone is POA please contact us for a delivery cost before ordering.

Sorry - we no longer deliver to Northern Ireland.


Please select the correct Delivery Zone for your postcode at checkout to ensure your order is dispatched as quickly as possible.