with the nozzle screwed into the piping union – may result in damage to the rear wall of the
tank, rendering the set unusable. When screwing the LOCK-LINE nozzle into the piping union,
it is best to carefully bend it towards the inside of the tank.
The draining unit consists of a piping union that is passed through the left (bigger) aperture
drilled in the bottom of the overflow box at the back of the aquarium (on the left side of a person
standing behind the aquarium) and a ball valve mounted on the right (far) side of the sump (as
viewed from the front of the tank). In order to screw the piping union into place, unscrew the
nut and pass the union through the left aperture in the bottom of the overflow box so that the
black gasket touches the upper surface of the bottom wall. Next, screw the piping union into
place.
The ball valve must be installed in the sump in the right (bigger) aperture of the shelf pasted
into the upper part of the rear wall of the sump (as viewed from the front of the tank). In order
to screw the ball valve to the holder, unscrew the coupler and pass the valve through the aperture
in the holder so that the black gasket touches the upper surface of the holder. Next, screw the
piping union into place.
The emergency draining unit consists of a piping union that is passed through the right (smaller)
aperture drilled in the bottom of the overflow box at the back of the aquarium (on the left side
of a person standing behind the aquarium). In order to screw the piping union into place,
unscrew the nut and pass the piping union through the right aperture in the bottom of the
overflow box so that the black gasket touches the upper surface of the bottom wall, and the
white gasket touches its bottom surface. Next, screw the piping union into place.
NOTE! Only use your hands to tighten the pipe unions. Under no circumstances should
spanners or any other tools be used for this purpose! Over-tightening of a piping unit may cause
damage to the unit and/or the tank, resulting in leaks and flooding!
Note! The assembly of couplers (used in the feeding, draining, and emergency draining units)
is shown in Figure 3.
