Drainage pipes carry effluent from utilities in the home. This pipes sometimes run along walls where they are exposed due to the location of the utilities. The pipes may be exposed in wardrobes, below concrete slab soffits or on floors. Usually they may run vertically or ตู้เสื้อผ้าเหล็ก horizontally in a wardrobe. The wardrobes are constructed after the piping is done. They are then covered for aesthetics with gypsum and a point for inspection allowed for rodding.
Exposed drainage pipes in a wardrobe can be of different sizes. This depends on the service that the piping is used for. Usually for bathtubs, showers or wash hand basins, a two inch pipe is used. For lavatories a minimum of four inches pipe is used. The pipes are supported on the wall or concrete surfaces. Usually wall mounted brackets fasten the pipes to the masonry or concrete. The rodding eye is fixed at the corner before the pipes join the main line.
The covering of the exposed drainage pipe commences with a frame work of mild steel or timber. The timber is in the thickness of two inches. Steel nails are used to fix the timber to the wall or concrete. The size of the pipe will guide the width of the covers. A pipe of two inches gets a cover of six inches, while one for four inches or six inches has a cover of ten inches wide. The appropriate width is then measured out and marked for the intended pipe.
A box cover is to be formed inside the wardrobe. This will have two sides made at ninety degrees. The timber railings are fixed along the wall for a pipe running vertically. For a horizontal pipe, the rails are fixed to the ceiling and wall to for a ninety degree. The gypsum is screwed ตู้เสื้อผ้าเหล็ก onto the timber. A one foot wide piece of gypsum board for access as a service hatch is done for the rodding part. It is then prepared for painting and finished.