I would say try it but I doubt it will work good, but it could.
hows that for an answer
my concern is the size of the inlett of the dart. at 2" it will suck a lot of water but it all depends on the suction head pressure. if there is enough to supply the dart with lots left over then ya it will work, if not you will get cavatation in one of the pumps. best way to do it would be to have a large bulkhead, say 3" and have it go into a 3" pipe with a "T" on the end to feed the pumps. this will allow more water lower and creat a resivoir which is feed by a large bulkhead under a higher suction head.
Steve
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