A little plumbing cine.
https://videos.files.wordpress.com/34QqD73r/img_9700.movView behind shower shows moisture marks up to the shower stack. Water marks also on lip behind tub. We had just recaulked the tub tile.
https://videos.files.wordpress.com/db0P6Kqy/img_9699.mov
Corrosion line scale on the drain.
Shutoff valves to bathroom hot water
Tub drain in basement where h2o was noticed
Lines to hot h2o. Drain from toilet to septic stack
