NEXUS 220 GRAVITY FED INSTALLATION
A solid and level base is required. It should be a minimum of 1.2m x 1.0m, to allow
easy access to valves and for maintenance purposes. The Nexus filter needs to be well
supported, this is to prevent distortion when it is full of water. The best option for this is a
level, 100mm thick, concrete plinth, although decking or paving slabs would be sufficient
as long as the Nexus sits level and is not allowed to deform under the weight of the water.
A gravity fed system is where the water level in the Nexus is at the same height as the
water level in the pond, therefore it is critical that the Nexus is installed so that the lip at
the top of the Nexus should be level with the proposed finished surface water level of the
pond. The plinth for your Nexus, should be 735mm below where you want the finished
pond water surface to be. Please see diagram below.
IMPORTANT NOTE: It is not sufficient to support the Nexus using
just blocks underneath the feet, as this will lead to damage to
the Nexus. Incorrect installation will render the warranty invalid.
GRAVITY FED INSTALLATION INSTRUCTIONS
17
735mm
Figure 11.
Please note: a minimum of 1.2m x 1.0m solid, level base is needed to support
the Nexus. A 100mm thick concrete plinth is the best option. The Nexus 220
weighs in excess of 510kg when operating and full of water. An unlevel base
will cause irreparable damage to the unit.
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