Water Pretreatment Equipment Technician

HOH Water Technology•Palatine, IL

3d•$34 - $42•Onsite

About The Position

HOH Water Technology is seeking an experienced technician to independently install, start up, service, troubleshoot, repair, and optimize commercial and industrial water treatment systems throughout the Greater Chicago area. This hands-on field role involves managing service calls, preventive maintenance, repairs, installations, and commissioning across an assigned territory. The technician works independently at customer sites and communicates findings and recommended next steps clearly. The role covers a range of pretreatment and high-purity equipment, including reverse osmosis, deionization, water softeners, filters, UV disinfection, chemical feed systems, chlorine dioxide systems, and portable exchange tanks. Duties also include advanced troubleshooting, preventive maintenance, emergency repairs, water-quality testing, system optimization, service documentation, customer communication, and supporting junior technicians. Overnight travel may be required, and the technician participates in a shared on-call rotation approximately once every 6–8 weeks, with occasional evening or weekend work. HOH describes itself as a growing, third-generation water treatment company with 58 years in business. It emphasizes accountability, creativity, teamwork, service, employee development, and customer service.

Requirements

At least 5 years of experience servicing commercial or industrial water treatment equipment.
Hands-on experience with RO, DI, softeners, filters, UV, chemical feed systems, pumps, valves, sensors, controls, and instrumentation.
Experience supporting healthcare, laboratory, pharmaceutical, manufacturing, or industrial customers.
Strong mechanical and electrical aptitude, advanced troubleshooting skills, and critical-thinking skills.
Ability to independently manage a service territory and prioritize multiple service calls.
High school diploma or GED.
Valid driver’s license and satisfactory Motor Vehicle Report (MVR).
Comfort using a laptop, tablet, Microsoft Word and Excel, calendars, and field-service software.
Legally authorized to work in the United States and at least 18 years old.
Must pass a Human Performance Evaluation (HPE), Motor Vehicle Report (MVR), and drug screening.
Ability to lift at least 75 pounds and perform physical work that may include climbing stairs or ladders, removing media, and installing equipment.
Ability to sit for extended periods while driving to customer sites.
Willingness to work in hot and cold temperatures and in environments involving chemicals and noise, using required PPE for the face, ears, and hands.
Willingness to travel overnight when required.

Nice To Haves

Technical education or military service.
Ability to mentor other technicians and contribute to employee development.

Responsibilities

Perform advanced troubleshooting and repair of commercial and industrial water treatment systems.
Install, start up, commission, validate, rebuild, and optimize pretreatment equipment.
Service reverse osmosis (RO), deionization (DI), water softeners, multimedia and carbon filters, UV disinfection, chemical feed systems, chlorine dioxide systems, high-purity water systems, and portable exchange tanks.
Diagnose issues involving PLC-controlled equipment, VFDs, pumps, valves, sensors, controls, instrumentation, electrical components, plumbing, and mechanical systems.
Perform membrane cleanings, RO performance evaluations, sanitization procedures, water-quality testing, and system optimization.
Read and interpret electrical schematics, P&IDs, plumbing diagrams, technical manuals, and equipment documentation.
Complete preventive maintenance, emergency repairs, service calls, installations, start-ups, and commissioning activities.
Create clear service reports documenting work completed, outstanding issues, recommendations, and next steps.
Communicate with customer contacts, Account Managers, Project Managers, and internal service teams.
Maintain tools, PPE, truck stock, field equipment, documentation, calendar, and vehicle cleanliness.
Mentor and support junior technicians on troubleshooting, service procedures, documentation, and customer communication.
Participate in a shared on-call rotation approximately once every 6–8 weeks; occasional evening or weekend work may occur.

Benefits

Medical and dental insurance with generous employer contributions.
Annual HSA contributions.
401(k) with company matching.
Life insurance.
15 PTO days.
16 paid holidays, including extended holiday pay at the end of the year.
Company profit-sharing bonus; the 2026 budget projection is approximately 3–4 weeks of additional pay.
Company-provided vehicle, laptop, tools, PPE, and field equipment.
Hands-on learning, employee development, and continuing education reimbursement.
Opportunities to mentor other technicians.
Team and company events.