CSO/SSO - Combined and Sanitary Sewer Overflow Solutions
Self-cleaning screening, flushing, and floatables control systems to meet CSO/SSO regulatory requirements at overflow structures.
What are CSO/SSO Solutions?
Combined sewer overflow (CSO) and sanitary sewer overflow (SSO) events discharge untreated or partially treated wastewater to receiving waters during wet weather. Regulatory requirements for CSO/SSO abatement demand reliable infrastructure that captures solids, controls floatables, and manages flows — often in remote locations with limited power and operator access. Self-cleaning, low-maintenance systems are essential for reliable performance without continuous operator attention.
Equipment We Represent
Grande Inc. - CSO/SSO Specialists (MUHR Products)
Grande Water Management Systems (est. 2002), exclusive North American partner of MUHR (60+ years of European engineering). 6,000+ installations worldwide. All products stainless steel construction. Most systems operate on waterflow energy — no external power required. Virtually maintenance-free, self-cleaning designs.
Overflow Screening:
- ACU-SCREEN — Slotted overflow screen retaining all solids 3/16" (5 mm) and larger. Drive mechanism never submerged. Self-adjusting brush cleans in both directions. Slotted openings minimize pressure loss. Can combine with ACU-BEND for curved installations.
- TRU-RAKE — Self-cleaning bar screen for overflow applications. Retains solids 3/16" (5 mm) and larger. Drive mechanism never submerged. Self-adjusting brush cleans in both directions.
Tank and Sewer Flushing:
- ACU-TIP — Tipping bucket flushing system. Low maintenance, unlimited water flow, minimal contact with debris. Uses available water supply.
- ACU-GATE — Flushing gate with counterweights. No bottom clearance required. Optimizes on-site storage, reduces overflow frequency, prevents reflux. Constant and adjustable operating level.
- ACU-DRUM — Pivoting drum flushing system. Drains even when partially full. Works without external energy or fresh water supply. No structural modifications required.
Floatables Retention:
- ACU-LAM — Lamella deflector for flows up to 90 cm depth. Modular construction up to 2 meters long. Low hydraulic resistance.
- ACU-SELF — Self-adjusting floating deflector that adapts to changing water levels.
Flood Protection:
- Infrastructure protection systems for combined and separated sewer systems during extreme weather events
- All products designed for easy retrofit into existing installations
- Full design support: static calculations, construction drawings, and on-site supervision
DryCake — Seditank Grit & Solids Removal
- Piped-in/piped-out grit removal that eliminates the need for grit pumps
- Can be combined with screening systems for overflow and stormwater applications
- Plastifloat option for floating plastics and microplastics removal
Applications
Screening and floatables control at wet weather overflow regulators
Flushing systems to keep detention basins clean between storm events
Self-cleaning screens and floatables deflectors for stormwater management
Tipping bucket and gate systems to prevent sediment accumulation in sewer inverts
Why Winschel Environmental?
- 6,000+ worldwide installations — Grande/MUHR systems have extensive reference projects across municipalities and utilities
- No external power required — Most Grande products operate on waterflow energy, critical for remote overflow structures
- Self-cleaning design — Virtually maintenance-free operation reduces O&M burden on collection system staff
- Virginia coverage — Local support from overflow structure design through installation and long-term performance
Need CSO/SSO abatement solutions?
Tell us your overflow structure type, flow rate, and regulatory requirements — we'll recommend the right Grande products.
Contact UsOr call us: (804) 545-3115