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Unread 07/03/2011, 09:55 AM   #12
coolfish5
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Join Date: Sep 2002
Location: Christiansburg, VA
Posts: 358
I think the box is the auto shut off valve, that kills water flow to the membrane when the product water line is shut off, like when using a float switch. That way it doesn't continuously run waste water down the drain.

I removed the original restrictor and got an inline one to match the membrane size from bulkreef when I replaced my membrane.


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John

Current Tank Info: Reef: 65RR (6x HOT5 Nova Pro). Fresh water: 55 tropical
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