GRAVITY FED INSTALLATION
-5-
* Useful Tip on Getting your water Level right
Getting the water level right in your Nexus is important as if this level is too low
it will affect the ow rate from
your bottom drain as well as the
efciency of your Eazy both in
cleaning and blocking rate. If
the level is too high, you may get
Kaldnes overowing between
chambers. The ideal level is located
just under the top lip of the Nexus
as shown in Figure 5.
The way to measure how high your
Nexus base should be is to measure
the height between your pond
water level and lter bay using a
spirit level or a laser level. And with
a tape measure calculate the appropriate base level.
Gravity Fed Installation Steps
Attach the 4”-4” Boot (Fig 1.1) to the Nexus Inlet (A) then to the 4” bottom 1.
drain pipe by tightening both jubilee clips
Attach the 4”-2” Rubber Boot (Fig 1.2) to the Nexus Outlet (F)2.
Connect the 1.5” Single Union Ball Valve (Fig 1.3) to the 4”-2” Rubber Boot 3.
(Fig 1.2) with the union side facing down towards the pump (depending
on your arrangement you may require an elbow between the boot and
valve)
Connect your water pump to the Single Union Ball Valve (Fig 1.3) on the 4.
union side
Place the 50L K1 media bag into the outside chamber (D) of the Nexus (300 5.
x 2)
Place the K1 bag marked either 30 or 45 into the Eazy basket (C)6.
Connect your air pump to the Nexus air inlet (H) located next to the water 7.
inlet using suitable hosing such as standard 12mm diameter garden hose
Connect your pump outlet to the remainder of your pipework including a 8.
UV steriliser.
Insert the safety exit gill (Fig 1.5) into the exit chamber (E)9.
Connect the waste valves (G) to your waste outlet (Described on Page7)10.
YOUR NEXUS IS NOW READY FOR USE
Pump fed installation is where the pump supplies water to the Nexus and water
returns by gravity through a 4” (110mm) pipe. Figure 6 shows an example of a
pump fed system.
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