Sump drain line question

[FPSD]

Hope I can make this clear. I have a ghost overflow. 3 - 1 1/2 lines down.
Primary/ Secondary/ Emergency
Had an idea to run the 3 pipes down to above the sump then tee them into one 2' pipe into sump. Just to simplify the number of pipes running into sump. Can't think of any negatives. Any negatives you guys see I don't. Thanks.

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[FPSD]

Sorry the drain pipe pieces altered after I posted

 

[Civicman86]

Would think that would be ok as long as the 2" pipe didn't clog for some reason.

 

[heathlindner25]

I would think it would defeat the purpose of running three different lines?

 

[drew2007]

Defeats the purpose of running 3 lines. 1 is a fullsiphon. 1 is a "Durso" type and then the emergency. It's a bean animal design setup.