87
INSTALLATION ADVICE
The Cetus Sieve needs to be installed on a solid level base so that it doesn’t deflect
under its own weight. It is recommended to use a 100mm thick concrete plinth,
although decking or paving slabs can be used.
During installation a spirit level should be used across the metal plate on the weir
to make sure the Cetus Sieve is level as shown in Figure 5. This will ensure that the
water flows evenly across the screen.
Figure 5.
Pipe Sizes
Pipe diameter determines the pressure loss within the pipe, so for flows where
gravity is the driving force, large bore pipe (4” / 110mm) needs to be used.
Therefore in a gravity fed system, the inlet (the line from the bottom drain or
skimmer) needs to be 4” (110mm) and also in a pump fed system the return line
from the Cetus Sieve to your pond or filter needs to be 4” (110mm). When flows are
under 10,000 litres per hour it is possible to use 3” (90mm) pipe instead.
Circulating Pump Installation
When installing your pump on a gravity fed system, the pump must be installed
lower than the level of the outlet to prevent airlocks within the pump.
Also if there is any chance of back siphoning, a one way valve must be installed
after the pump to prevent the Cetus filling with water.
PLEASE NOTE: For any maintenance needed underneath the screen, you may
need to cut off the plastic fastening clip that is holding the screen in place. This
clip can be seen at the bottom of the screen near to the outlet. Simply use a small
pair of cutters to snip this off.
To Next Page
Loading...
