Pump & Irrigation Repair Services
Serving Central California Since 1989

Pump and Irrigation Repair Services
When your irrigation system isn’t performing, it’s rarely just one issue. Pumps, filters, pipelines, electrical systems, and wells all work together—and when one component fails, the entire system is affected.
At Cal-West Rain, we provide comprehensive agricultural pump and irrigation repair services, including maintenance, electrical troubleshooting, and well rehabilitation services for farms and farm managers across Central California.
Since our start in 1989, the goal is simple: restore reliable water delivery as quickly and efficiently as possible.

Agricultural Pump Repair & Service
Pumps are the heart of your irrigation system. We provide complete pump troubleshooting and repair services for all types of agricultural pumps.
Deep Well & Short Coupled Turbine Pumps
- Testing, troubleshooting, and inspection
- Electrical and motor repairs
- Pump pulls and well video inspections
- Bowl and component repair/replacement
- Sand damage and wear issues
Booster & Lift Pumps
- Troubleshooting and inspections
- Pressure loss and system inefficiencies
- Cavitation and vibration
- Electrical and motor repairs
- Repair and rebuild services
Pump Optimization
- Flow and pressure testing
- Efficiency issues and improvements
- Matching pump output to irrigation demand
- Motor rewinding, rebuilding, and replacement
- Pump repairs and rebuild services
- In-house machining and fabrication services

Irrigation Maintenance & Repairs
Beyond the pump, overall system performance depends on proper irrigation infrastructure. We provide a full range of troubleshooting, repair, and maintenance services:
- Pressure/flow troubleshooting and repairs
- Leak detection and correction
- Filter system maintenance and repair
- Repairs to mainline and submain pipelines
- Troubshooting poor distribution uniformity
- System assessments and recommendations
- Seasonal startup and shutdown services
This ensures water is delivered at the designed flow and pressure across your fields, orchards, and vineyards.

Filter Maintenance & Repair
Filtration is critical—especially for drip and micro-irrigation systems. We offer a range of filter services from seasonal maintenance to troubleshooting, repairs, and upgrades.
Types of Filters
- Sand media filters
- Screen and disc filters
- Sand separators and strainers
- Automatic and manual filtration systems
Common Issues We Address:
- Clogged or restricted filters
- Backflush system failures
- Pressure loss across filter stations
- Uneven flow due to poor filtration
- Problems due to limited/no routine maintenance
Proper Filter Maintenance Helps
- Prevent clogging - Emitters, drippers, sprinklers
- Extend equipment life - Pumps, valves, pipelines
- Reduce costs - Less downtime and fewer repairs
- DU - Consistent pressure and coverage

Well Development & Rehabilitation
Water supply issues are often related to the well itself—not just the pump.
Well Development
Typically performed on new wells to:
- Maximize Yield: Increases the porosity and permeability of the gravel pack and the surrounding aquifer, allowing water to flow more freely into the well.
- Cleaning the Borehole: Removes drilling fluids (mud/polymers) and fines (silt/sand) that block the well screen, ensuring clean water production.
- Stabilizing the Formation: Rearranges formation materials, reducing the likelihood of sand pumping later and extending the life of the pump and well.
- Optimizing Efficiency: Ensures the well operates at full capacity, reducing long-term pumping energy costs.
Well Rehabilitation
Intended for existing wells experiencing a decline in production.
- Reduced output or efficiency
- Sand production
- Mineral buildup or clogging
Services may include Mechanical Rehabilitation methods that focus on cleaning and agitation to dislodge deposits. We also use Chemical Rehabilitation to dissolve stubborn incrustation (scale) or break down bacterial growth.
Benefits of Well Rehabilitation
- Restoring well capacity and performance
- Improving water quality
- Extending well life
- Reducing pumping costs
- A significantly lower cost when compared to a new well

Electrical Troubleshooting & Repairs
Many irrigation failures are electrical in nature. We provide ag-specific electrical diagnostics and repair services, including:
- Pump motor and electrical troubleshooting
- VFD installation, programming, and troubleshooting
- Electrical panel troubleshooting, repair, and upgrades
- Utility coordination for new power connections
- Electric motor troubleshooting and repair
- Power supply and wiring issues
- Breaker trips and startup failures
- Wire theft and vandalism repairs
By integrating electrical and mechanical expertise, we solve problems faster and more completely.

Preventive Maintenance
Avoid costly downtime during peak irrigation and pumping periods with scheduled maintenance. Our preventive maintenance services include:
- Pump performance testing
- Filter inspection and servicing
- Electrical system checks
- Flow and pressure validation
- Early detection of wear and failure risks
- Seasonal startup and shutdown services
Benefits of Preventive Maintenance:
- Fewer emergency repairs
- Avoid unexpected and costly downtime
- Lower energy costs
- Longer equipment life
- Consistent irrigation performance
Why Growers Choose Cal-West Rain
Turnkey Solutions: Design, construction, repairs, and maintenance services for all types of irrigation and pumping systems.
- Over 35 years of serving growers across Central California
- Specialized in pumps, irrigation, and agricultural electrical systems
- Full-service capabilities—diagnosis through repair and rebuild
- Local teams based in Kerman, Hanford, Bakersfield, and Paso Robles
- Trusted by family farms, corporate farms, farm managers, and investors
- Locally owned and family-operated since 1989
Emergency Irrigation & Pump Repair Services - When irrigation systems fail, response time matters—growers count on Cal-West Rain.
- Fast field response across Central California
- Fully equipped field service trucks and pump rigs
- Experienced agricultural technicians, servicemen, and electricians
- Locally stocked parts and equipment inventory
With three decades of experience, we understand the operational realities of farming—and we deliver quality services that work in the field.

