Slurry mixer for vaport blasting 1-1/2bsp

Vapor blasting water pump 90° elbow with 1-1/2 inch thread with additional nozzles
Simple prototype with two 7mm nozzles to help with mixing slurry if you use someting heavier or one bypass is to weak, however im still dialing my setup.
My waterpump is 1000w Macalister 308l/min and there is like 15L of water in bucket.
I still use bypass tho. 
1-1/.2 thread might be bit hard to screw in but in my case worked without any addinational treament.
Printed my with ASA
Any feedback is appreciated