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10/09/2007, 09:55 AM
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Registered Member
Join Date: Sep 2007
Posts: 1
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Closed Loop
I have been reading some different posts and articles on closed loops, and have to ask the question. What’s the difference between a closed loop system with a foam pre-filter pad and using a canister filter with only a foam pad? The obvious being a lot less GPH on the canister.
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