I have a fiberglass tub with tile on the walls surrounding it. At the joint where the top of the tub and the bottom of the tile meet it has been sealed with what I can only describe as a putty. It is definitely not grout nor does it seem to be silicon caulk. The sealant was cracked on one end of the tub, so I have cleaned it out and would like to reseal. The seems on the other two sides of the tub are intact and holding up well, I would like the third side to match but am unsure of what they used originally. It is a dark brown color and matches the color of the grout. I used a putty knife to clean it out and while the surface was fairly hard it is kind of soft and crumbly when you dig into it. Any ideas what it is? If nothing else, does anyone know who makes a good bathroom caulk in a dark brown color? I hope my description makes sense. Thanks for your help!

First time home owner and first major DIY project. The main bathroom and master bathroom are side by side only sperated by a wall. I currently have the master bath gutted. it is 5'x7.5' and the main is 8'x7.5 feet. Both are really small. Would it be worth making one bathroom out of the two? if so do I keep both entrances? Not sure if it would affect the re-sale value if I was to do that, instead of a 2.5 bath home it would be a 1.5.......maybe a 2 bath home.(see how this reno goes) Either way I am having a very hard time deciding a layout for both, wifey wants a nice big tub to soak in and I want a nice big shower, with a window in the master bath and 2 doors to deal with I am at wits end trying to figure something out. Any feedback or ideas would be appreciated.