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plumber89
Just wondering if a 4 inch double swept tee is possible to buy, as i remembber at college i was told you werent alowed anything like this as you could get flow going wrong way. in my situation i have one wc with a about 600mm length to stack and another one with a 5 metre run to soil stack, i was wondering if the one with longer run was flushed could water be pushed up the other run?
cheers
cheers