wankel
        
文章: 160
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于 2002-08-06 01:24 
No Problem will cause by the oversized bio ring. after 6 to 9 month, U need to wash the ring and put them back again, Only problem is your cleaning load and the Choice of pration of ring. U can image, all ring have 10%, the is ok, but if those N-bateria is life in a Part U choice to wash, but all of the remainding is RING ONLY, this will kill your system. Suggestion is the use AC, need no wash and change, and take some ring out. And the skimmer....... U know...
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