Hi there! We are renovating a basement bathroom and my husband and FIL just laid the plumbing for the shower (left), toilet (center), sink/vanity (right). We did not want to do this ourselves, but called about seven plumbers and no one wanted the work. Before they put the concrete back, I was so hoping someone who knows about this stuff could take a look and tell me if there is anything they would do differently for these runs. There is still time to fix it! TIA!