于 2003-12-09 10:36 A 400L/Hr pump is used as you would need a pump with sufficient 揚程to push the water up the bottom of the sump into the water inlet of the denitrator. A " T " flow divert device with an additional 閘制 should be installed to let the excess water to go back to the sump. Excess pressure for the pump would be created if the water inlet is merely controlled by using one 閘制 without the " T " to let go of the excess water