As many businesses start to think about reopening, we want to remind you that if the business was closed for the last 7 weeks or had low water use, the building’s plumbing system should be flushed of stagnant water. You should run the outside faucet located farthest away from your water meter for enough time to introduce new water throughout the building. The length of time is dependent on the size of the building and the complexity of the plumbing system.
Larger buildings, with complex plumbing, connected to public water systems that had reduced or no water use over the last 7 weeks are at risk for Legionella growth in the building plumbing system. The Washington State Department of Health, Office of Drinking Water has developed guidance on maintaining the building plumbing prior to re-opening and additional shock chlorination guidance if Legionella is detected in the building plumbing. If you have questions or concerns, please contact Jacki Brown.