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yes it is

what do mean by venting??????????????

24" checkmate valve, they said it cannot hold the 3.81" of w.c. that is could fall in the range of 4-7" thanks

rb1957 (Aerospace) the inner tank is filled either from the ground or from a pipe above, when the process is done it flows the basin or outer tank. The outer tank then flow out into the "world" If someone left the sludge line on the inner tank on the tank will then unfill, after 3.81" of wc...

we tried this I went to tideflex and purchased a 24" valve but it will only get us are 5-7" w.c. Every manufacture we call says an engineer has to verify flow, we need 2800gpm, but our structural engineers cannot figure this one out..

yes

we have looked at several valves, but nobody can tell us the flow rate, we want to use one of those flap valves but the manufacture will not give us the information.

will a float valve allow water to flow from the outer tank to the inner tank

both tank have water at all times, the inner tank either gets its water from the ground or from a pipe above, it flows into the outer tank. if the operator left the sludge lines open, the inner tank would begin to drain. it can structurally hold 3.81" of water col (inner to outer) we need a way...

Hi, I have a 135' dia steel water tank that is inside a concrete basin. If something happened and somebody let the sludge lines open in the 135' tank, and that tank started to drain, I need to be able to take water from the outside tank to the inside tank. I need to be able to keep the two tank...