Sea Recovery Aqua Mini 170 Owner's Manual page 24

2. Sea Cock Valve ** is used in a ship installation for safety reasons to close the feed water line during repair,
maintenance, and disuse of the system.
3. Sea Strainer *** has a clear bowl with nylon body filter housing or optional bronze body containing a cleanable
monel fine mesh filter screen. The Sea Strainer filters out large particulate matter and suspended particles that
would otherwise prematurely foul the cartridge Prefilter Element.
4. Booster Pump supplies a positive pressure to the Pre-filters and through to the High Pressure Pump. The
Booster Pump has a performance curve of 70 Ft Head (30 PSI) at 1.0 GPM. The resulting pressure at the High
Pressure Pump depends on the final installation configuration.
5. Plankton Filter *** This optional filter assembly contains a cleanable ultra fine monel mesh screen. The mesh
screen removes suspended solids or biological growth such as plankton. It also provides longer life to the
Pre-filter Elements and in turn provides lower system maintenance costs.
6. Pre-Filter This filter removes suspended solids 5 Microns and larger to protect the Reverse Osmosis Membrane
from fouling.
Caution: Do not use third party prefilter elements, use only Sea Recovery prefilter elements. Third party
prefilter elements do not properly fit and the seams fall apart. They also allow by-pass resulting in premature
fouling of the RO Membrane Element.
Caution: Do not use "string wound" or "fiber" prefilter elements. These types of elements are designed
for the Photographic Film Developing Industry. When used in sea water, they will plug up rapidly in 1/10th
or less the time. This will cause frequent shut downs of the system and very frequent changing which will
result in very high cost of maintenance.
7. Low Pressure Gauge displays the Inlet Pressure to the High Pressure Pump. The gauge assists the operator
in diagnosing the Sea Strainer, Booster Pump, Plankton Filter Element, and Pre Filter Element condition.
8. Low Pressure Switch shuts the system off automatically when a plugged filter element or other condition causes
a low flow situation. This protects the High Pressure Pump, the RO Membrane Element, and the Booster Pump
from damage.
22 Sea Recovery Aqua Mini 170, 350, 550 and 750