[ATTACH]74771[/ATTACH][ATTACH]74772[/ATTACH][ATTACH]74770[/ATTACH][ATTACH]74770[/ATTACH]Hello! So we replaced our faucet, and I'm having a leak issue at the connection from the supply line to the new faucet lines ( flexible). I've got compression reducers hooked up as the supply line is 1/2" and the faucet lines are 3/8". I'm either doing something wrong or need new fittings. But definitely need some help! *also the supply lines are braided extenders coming from the valves.

So while having dinner at my mother's house today, I noticed two small cracks and what appear to be small water stain on her living room ceiling. It was right below the bathroom. So after some investigation. it appear that at the corner where the tub met a wall, the subfloor (an area of maybe an inch or two?) has rotted. The floor is soft, and i can actually push the vinyl floor down slightly with my fingers. Which made the loose caulking in that area even worse. Rest of the edge around the tub seems to be fine. It is just that corner. There is a small access panel which allowed me to peak underneath the tub, the plywood underneath the tub appear to look fine. I couldn't find the rotted area with my hand from the access panel either. Maybe the tub sits on a different piece of wood? Photos I took: [URL]http://imgur.com/a/P0mS4/layout/grid[/URL] [ATTACH]74810[/ATTACH] [ATTACH]74811[/ATTACH] So few questions: 1. What would be the best way to fix this without taking out the tub/vinyl floor/living room ceiling. I'm going to re-caulk, but the fact the vinyl floor can be pushed down slightly at the rotted area, I'm bit worried that the new caulking I put on will tear. Should I just apply huge amount of silicon caulking at that corner? 2. Would vinyl shoe molding work better? Since it would cover the rotted area, and then the rest will be sealed with silicon caulking. 3. How should I repair the two small cracks on the popcorn ceiling. Thanks.