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6. Lightly lubricate the O-Ring.
7. Place the O-Ring back onto the bowl.
8. Insert the cleaned or new plankton filter elements into the bowls.
9. Screw the bowls on clockwise.
10. Hand tighten to seal the O-Ring. Do not use a wrench or other tool to tighten and do not over tighten. Over
tightening transfers stress to the lid and bowl threads, causing the lid or bowl to fail (e.g. crack or break) and
makes subsequent disassembly difficult.
Multi Media Filter Backwash
The Multi Media Filter contains fine gravel and #20 silica sand. This silica sand traps suspended solids larger than
20 micron. The top layer of the silica sand becomes packed with suspended solids and restricts flow through it.
When the silica sand becomes packed with suspended solids (as indicated by a loss of pressure), it must then be
back washed to waste. The back washing procedure fluffs the silica sand and dislodges the suspended solids from
the sand base. During back washing, the suspended solids are discharged to waste through the Multi Media Filter
Waste outlet. If replacing the media, the Multi Media Filter requires approximately 15 lbs. (7 kg) of small gravel
(1/8 x ¼ in. (3.27 x 6.35 mm), first on the bottom, then approximately 26 lbs. (12 kg) of #20 silica sand (on top of
the small gravel).
Note: New gravel and sand contain contaminates. The Multi Media Filter must be back washed prior to use.
1. Open the Inlet Sea Cock Valve.
2. Position the Rinse Clean Inlet Valve (if installed) to the normal operating position towards the Sea Strainer.
3. Position the Rinse Clean Outlet Valve (if installed) to the normal operating position towards the Brine Discharge
Thru-Hull Fitting.
4. Position the Multi Media Filter valves to Backwash.
5. In the Manual mode of operation, operate only the Booster Pump.
6. After 10 minutes of back washing, stop the Booster Pump.
7. Position the Multi Media Filter Valves to Rinse.
8. In the Manual mode of operation, operate only the Booster Pump.
9. After 5 minutes of rinsing, stop the Booster Pump.
10. Position the Multi Media Filter Valves to Normal Operation.
Commercial or Dual Pre-filter Element Replacement
The Commercial or Dual Pre-filter Pleated Cartridge Element may be cleaned with water spray once or twice. After
cleaning, the expected life will be reduced in half. Attempts to clean the element more than twice will result in
damage and failure. Change the element after the second cleaning. Clean or replace when blockage occurs (i.e.,
the pressure into the High Pressure Pump is equivalent to 10 PSI (69 kPa) or less. At slightly below 6 PSI (41
kPa), the System will turn off and display a fault screen.
Caution: Do not use third-party pre-filter elements; use only Sea Recovery Corporation pre-filter elements.
Debris bypass through third-party elements will damage the High Pressure Pump and prematurely foul the
RO Membrane Element. Use of third-party pre-filter elements voids any and all warranty on the High Pressure
Pump and the RO Membrane Element.
Caution: Do not use "string wound" or "fiber" pre-filter elements. These elements are designed for the
Photographic Film Developing industry. When used in sea water, they will plug rapidly.
Attention: DO NOT ACCEPT THIRD-PARTY PRE-FILTER ELEMENTS FROM ANY MARINE DEALER.
USE ONLY SEA RECOVERY SUPPLIED PRE-FILTER ELEMENTS. The System's resulting failure, and/or
damage to the System caused by third-party pre-filter elements, is attributed to improper maintenance and
operation, is the liability of the operator and owner, and is not covered by the Sea Recovery Corporation
warranty.
To replace the Commercial Pre-filter Element or Dual Pre-filter Element, follow the instructions below:
82
Aqua Matic XL 2200 - 3600
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