Clogged Drain Lines Clogged drain lines can occur just beneath a water-using appliance or it could be located in a waste stack or the main sewer line. Utilize the warm boiling water approach at first to see if it can be fixed by doing this. Faq Can Water From An Upper Apartment Backup Into Lower Floor Apartment Drain However the fundamental difference is the fact that in an apartment building it causes problems for several or all other...
