Prefabricated House Plumbing

The plumbing issues in prefabricated houses need to be comprehensively addressed through both aging renovation and pre-embedded construction

I. Aging Issues and Renovation Suggestions for Plumbing in Old Prefabricated Houses

Some prefabricated panel houses built between 1990 and 2010 often have aging, rusting, and leaking problems in their plumbing pipes, especially those in bathrooms and kitchens, due to long-term use. Pipes that have not been replaced or renovated for a long time are prone to rupture due to corrosion, leading to leakage and affecting living safety and quality of life.

In response to such issues, renovation suggestions need to be handled on a case-by-case basis:

1. Policy support level: Some suggest incorporating the plumbing renovation of prefabricated panel houses into government livelihood projects to address the aging of public facilities in old residential areas. However, official responses clarify that damage to pipes inside houses (such as in bathrooms and kitchens, which are private areas) does not fall within the scope of municipal public areas and is generally not suitable for government-funded renovation. Instead, homeowners are responsible for bearing the maintenance costs themselves.
2. Homeowner-initiated renovation: If the pipes are severely aged, homeowners can contact professional maintenance teams to replace them. During renovation, it is important to choose corrosion-resistant materials (such as PPR pipes and PVC pipes) and ensure that the construction complies with regulations to avoid secondary leakage.

II. Key Points for Pre-embedded Construction of Plumbing in Prefabricated Houses

To avoid future pipe problems, strict quality control is required during the pre-embedded construction phase, including:

1. Foundation treatment: Compact the soil and create slopes to ensure reasonable drainage gradients, preventing water accumulation from causing pipe deformation or blockage due to pressure.
2. Pipe classification and discharge: Sewage pipes and domestic water pipes should be laid separately to prevent cross-contamination. For example, kitchen wastewater and bathroom sewage should be discharged independently to reduce odors and bacterial growth.
3. Floor and pressure testing:
   • Water supply pipes: Pressure tests should be conducted to check pipe tightness and prevent leakage under high pressure.
   • Drainage pipes: Closed-water tests should be carried out to ensure smooth drainage and no leakage.
4. Point and layout planning: Plan the locations of drainage points (such as floor drains and toilet positions) in advance and reasonably layout the main water supply positions to avoid damaging the prefabricated panel structure during later modifications and increasing maintenance costs.

Through scientific renovation and standardized construction, the service life of plumbing pipes in prefabricated houses can be effectively extended, enhancing living safety and comfort.