We are seeking a skilled and reliable Mobile Water Treatment Technician (Tier 3) to join a technical compliance team responsible for delivering high-quality water hygiene and treatment services across Northern England. The successful candidate will be responsible for maintaining water systems in compliance with current legislation and technical standards, with some travel and overnight stays required. Key Responsibilities: Perform a range of water hygiene tasks including: Temperature monitoring and water sampling Showerhead descales and disinfections Cold Water Storage Tank inspections and cleans TMV (Thermostatic Mixing Valve) servicing Cooling tower cleaning and disinfection Dosing of inhibitors and biocides Testing and analysis of LTHW and cooling systems Servicing of water softeners and minor plumbing remedials Maintain and update L8 logbooks to ensure compliance and audit readiness Carry out planned preventive maintenance (PPM) visits as scheduled Provide prompt response to service requests, both verbal and written Operate in line with industry guidance including ACOP L8, HSG274, and BS standards