Hospital Laundry Water Recycling New Zealand

Water recycling can cut your laundry’s water use by 45–65% and gas use by around 15%. For laundries processing 100 tonnes/week, payback can be as fast as 6 months. Assess the dollar savings using measured laundry demand, the streams agreed for reuse and your actual utility bills. Include added electricity, testing, servicing and consumables when calculating net savings.

Public and private overnight hospital inpatient services must meet Ngā Paerewa NZS 8134:2021. Review the applicable laundry standards, hospital policies and linen contracts with your laundry and infection-control teams. Agree suitable reuse stages, water and linen-quality checks, staff responsibilities and the evidence needed before everyday use. Installing equipment does not establish hospital certification or approve the wash process.

Assess bed linen, towels, gowns, uniforms and other textiles against their own wash and hygiene requirements. Operating-theatre textiles, linen subject to additional infection precautions and chemically contaminated loads need specific review by the responsible teams. Agree accepted streams, exclusions and clean/soiled separation, then trial representative loads. Retain the hospital’s validated wash and disinfection requirements unless a change is approved.

Assess recycling at the laundry that processes the linen. For outsourced services, discuss water use, wash quality and reporting with the contractor, and agree how any savings would affect the contract. For an on-site laundry, measure its water and gas separately from the wider hospital where possible. Bed count alone does not establish laundry throughput or payback.

Apply 45–65% less water and around 15% less gas to the relevant laundry costs, then deduct added running costs. Use the installed quote and positive net annual savings to calculate payback; it can be as fast as 6 months at 100 tonnes/week. In Auckland, Watercare has fixed and volumetric wastewater charges, with the industry classification recorded on the account. An on-site hospital laundry does not automatically make the whole meter a laundry account. Elsewhere, check your own utility’s billing and trade-waste conditions.

Wientjens describes Blue Ocean connections to tunnel washers and washer-extractors, automatic controls and insulated buffer tanks. Ask the provider to match the selected model and storage to your approved wash-water streams, peak flow, plant-room space and maintenance access. Review cleaning, alarms and operator training as part of the installation plan.

Agree fresh-water capacity, isolation or bypass arrangements, alarm escalation and alternative linen supply before installation. Test the agreed contingency and restart arrangements during commissioning. Confirm maintenance tasks, service coverage, response arrangements and spare parts in the quotation. Review any changes to staff procedures and training with the laundry and infection-control teams.