SPEL Septic Tanks

Since 1975 SPEL Septic Tanks have been a core item of our product range, from the original ‘onion shaped’ design through to more complex horizontal tank systems supplied as part of framework agreements to water companies. The sizes range from domestic applications with capacity of a few thousand litres up to a maximum single piece tank of 300,000 litres. Multiple tank systems are available for even greater treatment capacity. There are a number of accessories that can be fitted to SPEL Septic Tanks to enhance and simplify their operation and maintenance.

SPEL Septic Tanks are designed with reference to BS EN 12566 and should be connected to a correctly designed and built herringbone soakaway, part of this process is ensuring percolation tests are conducted in accordance with BS 6297 (see details below).

The full range of Septic Tanks starts at 3000L capacity and extends to 300,000L capacity in a single tank. These systems can be further enhanced with the addition of benching, additional baffle walls and Bauer connectors, the Bauer connectors allow for safe and simple, odour free emptying of the septic tank.

Product Range

H Series | Horizontal Tanks

200 Series

(1.2m inside diameter):

1,000 – 10,000L capacity

300 Series

(1.8m inside diameter):

4,000 – 40,000L capacity

400 Series

(2.6m inside diameter):

13,650 – 100,000L capacity

500 Series

(3.5m inside diameter):

60,000 – 200,000L capacity

600 Series

(4.0m inside diameter):

100,000 – 300,000L capacity

Applications

Can be used in any application where the final discharge is to a soakaway, and subject to Environment Agency and planning consent.

Shell Design

Designed with reference to BS EN 13121. All tank shells carry the SPEL 25 Year Warranty and life expectancy in excess of 50 years.

Shell Specifications

Different tank shell specifications are available dependent upon tank invert levels, ground conditions and ground water levels. (See Installation Guidance section)

Inlet/Outlet Connections

Pipe connections available to accommodate most standard sizes.

Time to Fall	Number of Persons to be Served
	3 to 4		5 to 6		7 to 10		11 to 14
25mm (mins)	m	ft	m	ft	m	ft	m	ft
2 or less	11	36	16	52	27	90	37	120
3 or less	16	52	24	80	40	130	56	180
4 or less	21	70	32	105	53	175	75	250
5 or less	27	90	40	130	67	220	93	305
10 or less	53	175	80	260	134	440	186	610
15 or less	80	260	120	400	200	660	280	920

A guide to the length of perforated land drain requirements. The table above is for guidance only. It is based on a trench floor width of 450mm. You should consult your local authority for their recommendations.

Typical Soakaway Cross Section

Typical Soakaway Layout for a Single Dwelling

Request A Quotation

For further information phone our sales hotline 01743 457977 or email sales@spelproducts.co.uk