How do I install my DAVEY DEP Series Fiberglass Media Filter?

[OMax]

Installing your DAVEY DEP Series Fiberglass Media Filter involves several key steps to ensure optimal performance. First, select a permanent, level location for the filter, ideally near your pool, on a concrete slab or similar base (minimum 900mm x 600mm). While the filter is made with UV-stabilized materials, consider protecting the system from the elements for longevity. Here's a detailed breakdown of the installation process:

1. Assembly:

   • Remove the multiport valve by undoing the V-band clamp or flange nuts.
   • Verify that the laterals are securely in the hub assembly and that the standpipe is correctly inserted with the o-ring into the under drain of the valve.
   • Partially fill the tank with water to cushion the media.
   • Ensure the under drain assembly is correctly positioned at the tank's base.
   • Place the sand guide in the filter opening.
   • Pour the appropriate amount of filter media evenly, distributing it around the central pipe. Level the media bed's top.
   • Remove the sand guide and any stray media.
   • Clean the closure o-ring and place it correctly. Apply o-ring lubricant if needed.
   • Attach the multiport valve to the tank, aligning ports with plumbing.
   • Connect the barrel unions using supplied O-rings.
   • Attach the pressure gauge to the air bleed port, using the provided O-ring. Do not use Teflon tape on the pressure gauge thread.

2. Pipe Connections: Use Teflon tape on all male threads. Support piping independently; avoid placing excessive weight on the filter or pump. Use 40mm or 50mm (1.5" or 2") pipes for connections.

3. Additional Precautions:

   • Install a non-return valve between the pump and the pool on the inlet side.
   • If the waste line is deeper than 3 meters below the pool water level and longer than 12 meters, install a vacuum break valve near the filter.
   • If an auxiliary pump is downstream of the filter, protect it from creating negative pressure in the filter tank.
   • If the pump and filter are below the pool water level, install isolating valves in the pipes between the pump and skimmer box and in the return pipe to prevent pool water draining during maintenance. Failure to follow these steps may result in filter damage not covered under warranty. For detailed diagrams and further information, consult the DAVEY DEP Series Fiberglass Media Filters Instruction Manual.