Pump inlet sharing? Any thoughts?

[VLDesign]

I have a Hammerhead pump being fed through a 2" inlet and I need to add a Dart to the system.

Question is can I use a 2"x1.5"x2" T in the 2" inlet pipe and let the dart share the same inlet as the hammerhead or should I install an additional bulkhead and let it have it's own inlet?

 

[CHOMPERS]

Give it its own inlet. By sharing an inlet, a portion of their work will be against each other.