Horizon Reverse Osmosis Seafari Quest Compact 200, Owner'S Manual, Page: 47 / 116

IN FREEZING TEMPERATURES THE SYSTEM MAY NOW BE LEFT UNATTENDED DURING THE FREEZING
TEMPERATURE SEASON. AFTER THE SEASON, THE SYSTEM SHOULD BE RINSED WITH STORAGE
CHEMICAL IF IT WILL NOT BE OPERATED.
Long-Term Shutdown
A long-term or prolonged shutdown is a period in which the system is not used for longer than 3 to 4 months,
depending on conditions. For this interval, the system should first be rinsed with freshwater, then stored with System
and Membrane Element Storage Chemical (SRC SC). This chemical inhibits bacterial growth while maintaining
the high flux and salt rejection of the RO Membrane Element. The long-term shutdown procedure requires 10
gallons (38 liters) of potable water. Follow the directions listed below.
Important: If the system will be exposed to freezing temperatures during non-use, have ready (1 gallon /
3.8 liters) food-grade glycerin (propylene glycol), and follow instructions to add it to the storage chemical
solution. This prevents the water in the system from freezing.
1. Configure the system for a “Once-Through Depressurized Rinse” using the Product Relief Tube Kit.
2. Close the Inlet Sea Cock Valve.
3. Clean the Sea Strainer Mesh Screen.
4. Clean the Plankton Filter Element.
5. Replace the prefiltration cartridges with new 25- and 5-micron Sea Recovery prefiltration elements.
6. Fill the Rinse/Clean Solution Container with non-chlorinated product water.
7. Start the system. The rinse water rinses the entire system and discharge to waste.
8. Just prior to depleting the rinse water from the Rinse/Clean Solution Container, stop the system by pressing
the “START/STOP” switch twice to stop the system and also to abort the freshwater flush cycle.
9. Once again, fill the Rinse/Clean Solution Container with non-chlorinated product water.
10. Add ONLY 4 ounces (1/6th of the container) of SRC SC storage chemical to the water in the Rinse/Clean
Solution Container.
11. Mix and thoroughly dissolve the solution in the Rinse/Clean Solution Container.
12. If the system will be exposed to freezing temperatures, add 1-gallon (4 liters) food-grade glycerin (propylene
glycol) to the storage solution mixture. This prevents the system from damage in freezing temperatures.
13. Operate the system by pressing the “START/STOP” switch. The storage chemical solution flows from the
container, through the system, and out the brine discharge thru-hull fitting.
14. Discard any remaining winterizing solution in a safe, environmentally friendly and legal manner.
15. Reconfigure the system for normal operation:
a) Leave the Sea Cock Valve closed.
b) Reconnect the Sea Strainer outlet line to the outlet of the Sea Strainer or reposition the Inlet Clean Rinse
Valve to the normal operating position.
c) Remove the Product Relief Tube Kit.
d) Reconnect the High-Pressure Hose.
16. The Sea Strainer and post-filtration chapter have not received storage and winterizing solution in this process.
The water must be drained from the respective components.
a) Remove the Sea Strainer bowl from the Sea Strainer and drain the feed water from it. Replace the Sea
Strainer bowl back onto the Sea Strainer.
b) Remove the charcoal filter bowl from the charcoal filter, clean the inside of the bowl and replace the element
with a new Horizon Reverse Osmosis charcoal filter element.
c) Remove the pH neutralizer filter bowl from the pH neutralizer filter, drain the product water from it and clean
the inside of the bowl. Replace the pH neutralizer bowl back onto the pH neutralizer filter.
d) Disconnect the top and bottom tube fittings from the ultraviolet sterilizer and drain the product water from
the UV sterilizer chamber. Reconnect the top and bottom tube fittings back onto the UV sterilizer.
e) Disconnect the freshwater line from the potable water storage tank to the freshwater flush pump or, if a valve
is installed in this line, close it to isolate the potable water line from the freshwater flush pump.
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System Storage and Cleaning