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55 gal. drum bead filter
Drew Cutter wrote:
I wish the upright diagram of DIY bead filter would of label the bottom left outlet (the one the sealed) . Its functions ? WOOPS!! forgot this http://www.koi.com.my/ubbimages/ppdia.jpg The above diagram shows the working principle of bead filter. 1. For normal filter operation, turn valve F to on position. Close all other valves. For bead filter, water enters through the bottom and come out from top of drum. Please note this ( Top Photo shows the version water enter from the top and discharge at the bottom. ) 2. To backwash turn valve B to on position, off all other valves. Duration 2 to 3 mins 3. To rinse turn valve F near inlet and valve R to on, turn all other valves off. (Duration 30 seconds) It seems that either version will work, just that the photo version requires more complicated valve combinations. Chagoi |
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