Drainage Matters in Multi-Unit Construction
When you’re building vertically, traditional plumbing systems can be complex and expensive. That’s where engineered drainage solutions like ProVent and Sovent come in — both designed to reduce the number of vent pipes and optimize flow.
But which one is right for your project in Massachusetts? Let’s break down the differences.
⚙️ What Is a Sovent System?
A Sovent system is a single-stack drainage system designed for high-rise and multi-unit buildings. It combines air and water flow using a specially engineered fitting, allowing multiple floors to share a common vertical stack without additional vent piping.
Key Benefits:
- Fewer pipes = less material & labor
- Faster installation
- Proven for tall structures (10+ floors)
- Code-compliant in Massachusetts with proper design
🔧 What Is a ProVent System?
ProVent is a venting system that uses air admittance valves (AAVs) and specialty fittings to eliminate the need for conventional vent stacks through the roof. It’s ideal for low to mid-rise buildings, remodels, or where structural limitations make standard venting difficult.
Key Benefits:
- No roof penetrations
- Flexibility in layout
- Easy integration with remodels and additions
- Also meets code when installed correctly
🆚 ProVent vs. Sovent: Key Differences
| Feature | Sovent System | ProVent System |
|---|---|---|
| Best For | High-rises (10+ floors) | Low/mid-rise & remodels |
| Vent Stack Required | No | No |
| Uses AAVs? | No | Yes |
| Pipe Reduction | Significant | Moderate |
| Maintenance Access | Moderate | Easy |
| Code in MA | Accepted (with design) | Accepted (with AAVs) |
🛠️ Which Should You Use?
If you’re working on a multi-story apartment or commercial building, Sovent offers a reliable, efficient vertical solution — with long-term savings in both material and labor.
For smaller multi-units, retrofits, or additions, ProVent may be the better fit, offering flexibility and fewer roof penetrations.
RW Plumbing: Experienced in Both Systems
We’ve installed both Sovent and ProVent systems across Massachusetts. Whether you need help with the design or installation, our licensed team will ensure your drainage system is code-compliant, efficient, and future-proof.
Need help planning the right drainage system? [Send us your project] or schedule a consultation with our team.
