ivan0227 wrote: 各位, 不好意思, 撐開一點話題, zz兄, 你的外置上水泵入水是用牙咀直出的, 見過有些魚友因慳位原, 因而次序是沙缸牙咀>90曲>外置上水泵.這樣+90曲入水, 會阻外上水泵效能嗎? 還有外置上水泵出水是否要裝上止回閥呢?
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