Basement Toilet Backflow Preventer - There are numerous ways to help prevent moisture damage issues in a cellar. The first guideline is no dirt basements. Though these are somewhat less prevalent in this day in age, it's good to point out this dirt floors not just hold a large amount of moisture but also can give off a variety of gases. When constructing a cellar, make sure you've got a floor drain using a trap installed in the lowest point of the ground.
Without a floor drain, any water that's spilled inside cannot get out. If necessary, install a sump pump and make sure the sump cover is tightly sealed. Sump pumps are often used where flood due to a high water table might be a problem. In addition, waterproof the exterior of the foundation walls and put in a perimeter drainage system. An often overlooked problem in bathrooms is moisture that comes from humidity.
The simplest way to control humidity is to exhaust water vapor generated in the house to the exterior. Signs of high humidity include condensation on walls, pipes or other surfaces as well an overall sense of moisture from the atmosphere, dampness, and odors. Many times, the humidity is going to be brought on by exposing the cellar to outside air (open windows), using wet laundry hung to dry from the cellar, storing firewood from the cellar, and/or a dryer vent that exhausts inside.
To decrease humidity, there are numerous things a homeowner can do: install energy-efficient windows, insulate walls and cold water pipes, prefinished flooring if possible, run dryer vents to exhaust directly out and don't dry laundry or firewood in your cellar. In hot, humid weather, keep cellar windows shut. Run the furnace fan continuously to circulate house air. The real key to maintaining basement humidity low is to keep them well ventilated and keep additional moisture from the cellar.