Evolution Aqua eaReefPro 1200S, Installation And Instruction Manual, Page: 19 / 28

SETTING THE WEIR RUNNING HEIGHT
Optimum
water height
in weir
Display tank
water height
VIEW FROM
REAR OF TANK
VIEW FROM REAR OF AQUARIUM
Removable
strainer
Emergency
Overflow ( 3 )
Outlet
Assembly ( 1 )
STEP 1 - Ensure that main tank and sump are filled with water.
STEP 2 - Turn red handle on ball valve to fully open.
STEP 3 - Turn on sump pump.
STEP 4 - Start to close ball valve by turning red handle in small increments.
STEP 5 - Water level in back of weir will start to rise and overflow into the emergency
overflow pipe (component 3).
STEP 6 - Open and close ball valve in tiny increments until weir water level is just in line
with the top of the emergency overflow pipe (component 3).
STEP 7 - Over the next hours and days make small adjustment to ball valve to get the
system running almost silently. A DC controllable sump pump may also help to
get the water level adjustment in the weir just right (not supplied).
For more information on “Herbie” style overflow and how to regulate them, here is a useful
webpage: http://gmacreef.com/herbie-overflow-reef-tank-plumbing-method-basics
The weir overflow will
work at its optimum
performance when
the water level is at
the top during normal
operation, with a slight
trickle going down the
Emergency Overflow
(3)
. This is a better
method than trying to
perfectly adjust the
valve to match the
return pump flow.
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