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RI Industries

Septic Tank Specifications

We offer 14 different sizes of septic tanks. 

Depending on the location of your septic tank and how many people are in your household, we have a septic tank to suit to your requirements.


Our current septic tank specifications are shown in the following table:

Code Type Capacity (litres) Weight (kg) Length (mm) Diameter (mm) Inlet (mm) Outlet (mm)
SEP00560 horizontal 560 840 1220 1070 850 800
SEP01620 horizontal 1625 1875 1700 1420 1150 1100
SEP0300060 60mm wall 3000 2300 2286 1545 1305 1255
SEP0300050 50mm wall 3000 2000 2286 1525 1295 1245
SEP03250 horizontal 3250 2140 2300 1545 1335 1265
SEP04300 horizontal 4300 2550 2300 1770 1550 1490
SEP05000 horizontal 5000 2800 2300 1950 1630 1580
SEP05000 vertical 5000 3205* High 2385* 1930 2020 1980
SEP08000 vertical 8000 6310* High 2580* 2440 2250 2200
SEP12000 vertical 12000 8420* High 2580* 2870 2250 2200
SEP20000 vertical 20000 12510* High 2880* 3450 2550 2500
SEPPCC11 pump chamber 622 1276 1160L x 690W x 1550H (with lid) 1230 none
SEPPCC11 pump chamber 1100 2000 1100L x 1100W x 1480H knock outs none

*Height and weight depend on lid thickness

28,000 litre, 32,000 litre and 40,000 litre septic tanks are also available.

All septic tanks are available as holding tanks with nominal capacity increases.

1335

Glass Reinforced Concrete

A lightweight 300mm SaddleRiser is also available in glass reinforced concrete, weighing 56kg, with increments of either 290mm or 380mm.  These glass reinforced units are great to use in areas where crane or truck access is difficult.  They are suitable for use with the following horizontal tanks: 1,625 litres, 3,000 litres, 3,250 litres, 4,300 litres and 5,000 litres.