Movement of Toilets with Different Floor Drainage

The movement of toilets with different floor drainage can be achieved through solutions such as integrated toilet shifters, oval flat-pipe shifters, drilling holes in the floor slab, wall-mounted toilets, and same-floor or different-floor drainage shifting methods. The appropriate solution should be selected based on the actual situation, and relevant considerations should be taken into account.

Common Solutions

1. Integrated Toilet Shifter: Suitable for short-distance shifting. If the shifting distance is too long, the停留 (retention) time of feces and other waste in the pipeline increases, making it prone to blockages.
2. Oval Flat-Pipe Shifter: Composed of specialized connectors and adjustable-length oval flat pipes, with a typical pipe diameter of 110mm and a height of about 60mm. It is suitable for longer shifting distances but is not recommended to exceed 500mm. Using a flat-pipe shifter increases the height of the bathroom's cushion layer. Moreover, due to the flattening of the pipe, the water flow speed and smoothness are affected, making it prone to blockages. During construction, for every 100mm of movement, the pipe needs to be raised by 5mm in slope to ensure the smooth discharge of sewage.
3. Drilling Holes in the Floor Slab: This solution requires negotiation with the neighbors downstairs as it involves their ceiling. If not handled properly, such as drilling holes in inappropriate locations or failing to do proper waterproofing, there can be significant risks, potentially leading to water leakage and damage to the ceiling downstairs.
4. Wall-Mounted Toilet: The water tank is hidden inside the wall, and the toilet is suspended on the wall without touching the floor, saving floor space and improving space utilization. The sewage pipe is directly connected to the downpipe, reducing the possibility of pipe bends and blockages. There are no blockage issues, and there is no need to raise the floor, making it easier to clean. Additionally, storage space can be created above the water tank.
5. Same-Floor Drainage Shifting Method: Achieve a maximum slope of three centimeters, use round pipes, and do not install a trap. Connect directly to the main downpipe. A siphon-type toilet can be used as it has its own bend, effectively preventing the return of foul odors and reducing unpleasant smells.
6. Different-Floor Drainage Shifting Method: If the original trap is still used and round pipes are used with the maximum slope, it is best to use a straight-suction toilet. However, there may be issues such as foul odor return, water waste, and loud noise.

Considerations

1. Choosing Between Straight Discharge and Siphon: Depends on water pressure. The decision can be made based on the actual situation after water and electricity pressure testing. When the water pressure is sufficient, a siphon-type toilet has good flushing performance and is quiet. When the water pressure is insufficient, a straight-discharge toilet may be more suitable.
2. Reserving Hole Spacing: Reserve the appropriate hole spacing according to the selected toilet before doing water and electricity work to avoid gaps after installation, which can affect aesthetics and usability.
3. Shifting Distance: When using a toilet shifter, it is recommended not to exceed 40 centimeters. A long shifting distance can easily lead to blockages later. The area where the shifter is embedded should have a slope of more than 3% for drainage, and proper waterproofing must be done to prevent sewage leakage to the downstairs.