starting plans for a raised bathroom in my basement . I have ben looking on Google. YouTube etc. To figure out how to plumb the bathroom. Since I will not be breaking out concrete. How would I attach the new drain for shower sink and toilet to this existing cast iron line . Thanks
Check out Saniflo up flush toilets; they're great for basements above/below grade. You can have a sink/shower/toilet that all drains to a pump/macerator unit either behind the toilet or in the vanity cabinet. Outlet pipes are usually 3/4" or 1" PVC that can be pumped up as high as 20 ft in order to reach most of your smaller drain lines, which are usually easier to tie into from the PVC pipe. No need to raise the bathroom.