aquaforte UltraSieve III Notice D'utilisation page 13

Procedure: loosen the 10mm bolts a little bit in order to move the floating device. Note: do not remove the
bolts completely, a few millimetres is enough!
Push the floating device to the left in order to move it in the vertical opening. Choose one of the 3 levels and
push the device to the right position. Fasten the bolts again. You're done.
Level 1
This level gives the dam its
maximum length, suitable for pump
speeds to ± 6-10m³/hour.
The maximum length of the dam
prevents the water level underneath
the sieve from going too high for low
speed pumps.
The auto-adjustable dam with floating device
The UltraSieve has a floating system to prevent the water in the area under the
sieve from rising above the level of the sieve for low speed pumps and also to
prevent the water from going too low to be primed for high speed pumps. The
floating device can be installed at 3 different levels. You only have to do this
once when installing the UltraSieve or when you change pumps.
Stainless bolts (10 millimeter) to adjust
the height of the floating device
Level 2
This level gives the dam its middle
length, suitable for pump speeds to
± 12-16m³/hour.
This length prevents the water from
flooding the screen but also from
going too low which causes priming
problems.
3
Level 3
This level gives the dam its
minimum length, suitable for pump
speeds > 18m³/hour.
The minimum length of the dam is to
have a high water level under the
screen to prevent a high speed
pump from priming air.