Slip-In Pump Stations

Product Overview

Barski Industries’ Slip-In FRP Pump Stations provide the most efficient and cost-effective solution for replacing deteriorated or failing concrete / steel pump stations without full excavation or reconstruction. These stations are designed to be installed directly inside existing structures, extending the life of aging infrastructure while providing the corrosion resistance, durability, and reliability of fiberglass.

Each slip-in station integrates Xylem / Flygt submersible pumps for proven performance and reduced maintenance. This combination of FRP construction and Flygt technology enables municipalities and
industrial sites to restore pump station functionality at a fraction of the time and cost of full replacement.

Why Choose Slip-In Over Full Replacement?

Minimal Downtime

Installation time is a fraction of that required for a new build.

Lower Installation Costs

Eliminates the need for full excavation, new foundations, and extensive site modifications.

Reuse of Existing Infrastructure

Existing power, piping, and access structures remain in service.

Corrosion Resistance & Longevity

FRP construction provides a 100+ year service life, resisting the deterioration and leaks common to concrete and steel wells.

Leach-Free Performance

Concrete stations commonly suffer from leach and groundwater infiltration. Fully sealed FRP construction eliminates groundwater infiltration and exfiltration.

Custom Fit

Engineered to match existing site dimensions, with customizable diameters, depths, and nozzle locations.

Key Features

Pre-Assembled for Rapid Deployment

Delivered as a complete unit; only pumps and electrical components are installed on-site.

FRP Construction

Filament-wound FRP tank and discharge piping provide a sealed, corrosion-resistant structure with a 25-year warranty.

Custom Fit for Existing Infrastructure

Designed to insert directly inside deteriorating concrete or steel wells while reusing existing site infrastructure.

Confined Space Reduction

Options for above-ground or side-mounted valve chambers improve safety and accessibility.

Seamless Force Main Connection

Custom nozzle configurations allow straightforward tie-ins to existing mains.

Anchoring & Anti-Floatation

Locked in place with a secondary concrete pour between the old station and new station with only 3” of volume lost.

H-20 Load Rating Available

Available with traffic-rated tops for roadway installations. 
 

25-Yr Warranty

Same 25 year FRP structural warranty as a new build.

Applications

Slip-In Pump Stations are ideal for restoring:

Municipal Sewer & Stormwater Systems

Replaces failing concrete or steel wet wells without new excavation.

Industrial & Commercial Facilities

Extend the life of corroding or undersized pump stations.

High Water Table Areas

Provide a sealed structure resistant to infiltration and buoyancy forces.

Remote or Difficult Installations

Reduce site impact and simplify logistics in areas with limited access.

Case Studies & Proven Performance

Barski Slip-In Pump Stations have enabled municipalities and industries to modernize wastewater systems without the disruption of full replacement:
  • Restored service life of deteriorating concrete wet wells
  • Eliminated costly groundwater infiltration
  • Reduced installation time and avoided extensive dewatering​
  • Seamlessly integrated with existing mains and piping

Stoney Mountain Replacement LS

Barski Custom FRP Lift Station - Slip-In

Stoney Mountain

Stoney Mountain, Manitoba

6.5’ x 26.5’

136 Ave & Foreman Dr. LS

Barski Custom FRP Lift Station - Slip-In

City of Maple Ridge

British Columbia

9'3 x 32'

SaskPower Pit Replacement LS

Barski Custom FRP Lift Station - Slip-In

SaskPower

Saskatchewan

4’ x 14’10

Technical Specifications

Construction & Structure

  • Filament-wound FRP with smooth, high-luminous white interior gelcoat
  • UV-resistant polyurethane exterior
  • Design life: 100+ years

Slip-In Design

  • Custom-built to match existing structure dimensions
  • Minimal excavation required for lowering into place

Structural Load Capacity

  • Designed for full hydrostatic head when empty
  • Optional H-20 traffic-rated tops

Nozzles & Piping

  • FRP nozzles with laminated or machined ends
  • FRP discharge piping rated to 150 PSI (25-year warranty)
  • Optional 316 stainless steel piping (5-year warranty)

Anchoring & Anti-Floatation

  • Integrated reinforced ribs
  • Locked in place with a secondary concrete pour between the old station and new station with only 3” of volume lost

Pumps & Controls

  • Compatible with Flygt submersible pumps
  • SCADA-ready remote monitoring integration

Access & Safety Options

  • Above-ground valve chambers
  • Intermediate FRP platforms with removable hatches
  • Explosion-proof or intrinsically safe lighting
  • Non-slip surfaces, handrails, and fall protection

Warranty

  • 25-year warranty on all FRP components (same as a new build)

Resources

Downlaod PDF
Downlaod PDF
Downlaod PDF

Frequently asked questions

Have questions? We’re here to help.

A slip-in station is a prefabricated FRP station designed to fit inside an existing failing concrete or steel wet well. Instead of demolishing or replacing the structure, the FRP station is lowered in place. It is designed as an engineered station fully capable of standing on its own. 

  • Benefits: Minimal excavation, reduced bypass pumping, and extended service life of the existing well.
  • Common Uses: Rehabilitation projects, high groundwater sites, or locations where excavation is restricted or cost-prohibitive.

High level installation steps are as follows. Contact us for our full installation procedures.

  1. Confirm inlet/outlet orientation, elevations, and IDs with Barski.
  2. Remove all internal components from the existing wet well.
  3. Expose only the force main and electrical connections.
  4. Receive the new FRP slip-in station; lower, orient, and level it.
  5. Fill the station with water per Barski installation drawings.
  6. Place concrete slurry between the old and new structures up to the lowest inlet.
  7. Remove water before Barski’s field technician arrives.
  8. Barski technician completes on-site fit-up (approximately 1 day).
  9. Backfill with concrete in 4″-6″ increments up to the force main invert.
  10. Install pumps and commission the station.
Installation is significantly faster than full replacement because the existing structure remains in place, no excavation or demolition is required. Once the force main and electrical connections are exposed, the new FRP station is lowered, aligned, and leveled. Typical installation and tie-in can be completed within five days, minimizing excavation, bypass pumping, and overall construction time.
FRP structures are low maintenance. External surfaces are non-corrosive. Internal walls are smooth, reducing debris buildup and simplifying cleaning. Mechanical and electrical components (pumps, valves, instrumentation, controls) follow standard municipal maintenance schedules.

Initial material cost for FRP can be higher than concrete. However, total installed cost and life-cycle cost are often lower due to:

  • Faster installation (less labor) and reduced bypass pumping
  • All parts and components are fully included in the station price
  • Leak-free construction with minimal infiltration
  • Long service life with lower maintenance requirements

Why Choose Barski?

Barski Slip-In Pump Stations are the fastest, most cost-effective way to restore failing concrete and steel pump infrastructure without full reconstruction. By extending the life of existing wells while eliminating infiltration,
minimizing downtime, and lowering installation costs, Barski offers municipalities and industries a proven retrofit solution backed by thousands of installations across North America.

Contact us