Tee cone cap on laundry room stack had slow leak, no threads left on tee and tee cone won’t seal, attempted to smooth out corrosion and install new tee cone gasket and cap, also pro-poxy on cap to stop leak until customer has tee replaced with new threads and clean out cap. *** customer needs to have stack clean out tee replaced by plumber, threads for cap are gone and tee cone cap won’t make a water tight seal. ***