OddsAndEnds
Member
I know you can use a wye and wye combo coming into horizontal to horizontal on drain and either come in straight or roll it up. My situation is I have a main running horizontal and my branch drain coming in horizontal is offset at a higher level to where i need to roll my wye on my main putting it at 90 degrees on its back and come across with my branch horizontally and drop into the top of my main wye combo with a long sweep 90 off my branch leg. My question is, is using the long sweep 90 on my branch leg to turn down and come into the top of my wye combo ok. Keeping in mind that the branch is only serving as drain for lavs and shower.