50/50 bleach and water in spray bottle Paint it with road paint and mould will not return.
Insufficient water pressure or incorrect pipe sizing
You replace them with a non ferrous metal such as copper Type L or Brass piping schedule 40
no. if you drink a lot of water it causes you to go to the bathroom a lot and it makes your pee white.
Sweaty bathroom walls are caused by water condensation. The water that you use in the shower is usually much warmer than the air in the bathroom, which will cause condensation on the walls, especially in small and/or poorly ventilated bathrooms.
think its because of water and lack of condensation
Mostly hard water which damages pipes and internal parts of plumbing.
Are the lines to this bathroom connected? Follow the cold & hot water plumbing lines to the pipes which go to this bathroom. See if they are connected or if there are shutoffs on them and that they are turned on. If they are old galvanizd lines they could be plugged.
Because of the temperature of the water reacting to the temperature of the air in the bathroom, which forms evaporation, which causes you to see the "foggy steam".
Your pipes aren't clean "Dah"
THE THING THAT CAUSES YOU TO LOSE PRESSURE AND HOT WATER IS BOTH BATHROOMS ARE CONNECTED TO THE SAME LINES. SO WHEN YOU RUN SOMETHING, THEN RUN SOMETHING ON THE OTHER SIDE, YOU LOOSE POWER THAT YOU WOULD NORMALY HAVE IF ONLY ONE BATHROOM IS ON. THERE IS NO QUICK FIX, TO FIX YOU MUST REPLACE ONE OF THOSE LINES WITH NEW ONES PROBABLY FROM THE BASEMENT. ITS ALOT OF WORK, AND COSTLY. JOE HOJAS
You should get your drain lines snaked