Septic tanks - technical information
Septic tank construction
Balmoral septic tanks are produced in four sizes, ie, 2728, 3800, 4546 and 6000 litres, and are rotationally moulded in tough, polyethylene which offers a very high level of impact resistance.
Design features
• Balmoral septic tanks are designed in accordance with British Standard Code of Practice BS6297 and are based on a two chamber design with a long flow path which ensures a high degree of settlement and sedimentation, thus providing a low level of suspended solids suitable for discharge into an underground soakaway system.
• The system of baffles ensure that no crude solids escape into the outlet drain, avoiding premature blocking of the soakaway system.
• The tanks have Ø50mm moulded-in lifting eyes for use during handling and installation (only when the tank is empty).
• The inlet and outlet pipework is specially designed to disperse any noxious or inflammable gases into the atmosphere through the drainage ventilation.
• The standard septic tank is designed to cater for drain invert depths of 770mm. The neck can be reduced to suit shallower invert depth.
• The inlet pipe can be rotated by 180° to line up with the drainage lines from almost any direction.
• A fully lockable pedestrian duty manhole cover is supplied as standard to comply with statutory regulations.
• A safety grill can also be supplied as an optional item to fit across the access shaft as an additional safety feature.
• The tanks have a flat base for stability during transportation and storage prior to installation.
• Balmoral septic tanks are tested and approved by the British Board of Agrément (cert. no. 94/3021).
Installation
Detailed installation instructions, including information on the correct disposal of effluent, are contained in the Balmoral septic tank installation guide and owner's manual. Click here to download the installation guide and owner's manual.
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