They make all kinds of reducing fitting but what you got you have to donit right,not just reduce it at the 1-1/2″ pipe, you have to make a manifo out of tees in a line, first you put a 90 on the 1-1/2″ pipe then run horizontal using a 1-1/2″x3/4″ tee, then1-1/2″x3/4″ Tee then a 1-1/2″3/4″x3/4″ tee and then run 2 3/4″ lines out of the last tee. If you want a drawing send me your e-mail add. and I will send you a drawing. [email protected]
Art retired plbg