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6.
Assembling the tank dome and telescopic dome shaft
7.
Inspection and servicing
Pump out is as required by local bylaws, normally 3 to 5 yearly. Please contact your local authority.
100mm of sludge should always be left in the bottom of the tank to reseed the new batch after being
pumped out, tank must be topped up with potable water immediately after pump out.
In addition, please:
•
KEEP TANK FULL OF WATER AT ALL POSSIBLE TIMES ONCE INSTALLED IF GROUND
WATER IS PRESENT OR LIKELY TO BE.
•
ENSURE EXCAVATION HAS A MINIMUM OF 500MM CLEARANCE AROUND TANK.
•
ENSURE TANK IS COMPLETELY BACKFILLED WITH APPROVED MATERIAL.
•
ENSURE GROUND WATER FROM SURROUNDING AREA CANNOT ENTER
EXCAVATION.
•
CONTACT GRAF AUSTRALIA OFFICE FOR ANY ASSISTANCE.
info
@graf
australia.com.au
www.graf
australia.com.au
6.5 Truck telescopic dome shaft
On installation under areas used by trucks
with a maximum weight of 12 t, the telescope
is supported with concrete
(load class
B25 = 250 kg/m²). The layer of concrete to
be installed must be at least 300 mm wide
and approx. 200 mm high all around. The
cast frame
with star-shaped load
distribution for mounting the cast cover
is
then installed (observe earth coverage of at
least 800 mm, max. 1200 mm). The cast
frame must have a supporting area of approx.
1 m².
Attention
: It is essential to use the truck
telescope dome shaft
and class D lid
accor
di
ng to AS3996.
