Renovation Mobile Toilet Design - Bathtub

For the design of bathtubs in renovated mobile toilets, you can refer to the following plans. Choose the appropriate one based on the space characteristics and functional requirements:

1. Sunken Bathtub Design This is suitable for scenarios where there is relatively sufficient space and a traditional bathing experience is desired. Build a 20 - 30 cm high water - retaining board by backfilling the space. Use washed stone on the surface (which is non - slip and not rough on the feet) to form a sunken bathtub structure. Construction Key Points:

• Environmental Conditions: Construction should be carried out on sunny days to ensure that the concrete or cement - based materials form a single piece, avoiding surface cracking or insufficient strength due to high humidity;
• Crack Prevention Treatment: When carrying out large - area construction, reserve 4mm T - shaped contraction joints to release the stress caused by the thermal expansion and contraction of the materials and prevent later cracking;
• Waterproofing and Drainage: Apply at least two coats of waterproof coating (it is recommended to use flexible waterproof coating). Design a dual - insurance drainage system with both visible and hidden floor drains. The visible floor drain is used for regular drainage, and the hidden floor drain serves as a backup to prevent water leakage.

2. Mobile Bathtub Alternative Solution If the space is limited or flexible use is required, a simple shower system can be used to simulate the function of a bathtub. It can be modified based on a large - capacity green bucket:

• Shower System Installation: Drill holes in the top of the bucket lid and install a PVC pipe with a valve switch, with a showerhead connected at the end. Extend a three - way pipe from the bottom to an internal sprinkler to achieve basic shower functions;
• Capacity Expansion: By increasing the capacity of the water bucket (such as using a water storage bucket of over 100L) and controlling the water temperature, a short - time bathing experience can be simulated;
• Limitations: This solution does not have the sitting and lying structure of a traditional bathtub, so the comfort level is relatively low. However, it has a low cost and is easy to move.

3. Dry - Wet Separation Combined with a Bathtub If the mobile toilet needs to have multiple functions such as bathing, showering, and using the toilet, you can refer to the four - zone dry - wet separation design:

• Bathtub Layout: Install a large bathtub (such as a lightweight acrylic bathtub) in the area behind the door or in a corner. Achieve dry - wet separation through glass partitions or shower curtains;
• Floor Treatment: Use a continuous tile - laying design for the floor. The shower area is partially sunken by 2 cm, and the toilet area is sunken by 1 cm to reduce sanitary dead corners and guide the water flow to the floor drain;
• Ventilation Optimization: Install an exhaust fan or reserve ventilation openings to prevent the bathtub or walls from getting moldy due to a humid environment.

Precautions:

• Space Adaptability: Mobile toilets usually have a relatively small area, and it may be difficult to install a traditional bathtub. It is recommended to give priority to sunken or lightweight alternative solutions;
• Structural Stability: All modifications should ensure the safety of the load - bearing structure to avoid ground collapse caused by the weight of the bathtub or the impact of water flow;
• Waterproof Performance: Focus on checking details such as the area around the bathtub and pipe connections. Conduct a closed - water test (for at least 24 hours) to confirm that there is no leakage.