DOW reminds resorts, large facilities to flush water systems

LIHU‘E — The county Department of Water reminds resort properties and large commercial facilities to conduct a flushing of plumbing fixtures on property at least once a week and prior to reopening for business.

The flushing protocol is also recommended for schools and businesses that have significantly reduced the water demand within their systems during COVID-19-related closures or extended property vacancies.

A significant decrease in water demand, which includes the discontinued use and maintenance of water fixtures within a building, can cause stagnation.

Existing sediment in pipes can be stirred up in the water upon returning to normal water use.

The flushing process will help to prevent stagnation, clear out existing sediment and help to ensure chlorine residuals (which check microbial growth) are maintained within their facilities.

Current maintenance of water fixtures should also include the proper care of cooling and air conditioning systems and frequently maintaining and flushing the property’s hot-water systems to avoid unwanted microbial growth, such as legionella, during extended periods of non-use.

Customers are also advised to check backflow preventers to confirm they are functioning properly.

DOW closely monitors chlorine residuals levels on its water systems, and conducts routine flushing protocols to ensure water quality continues to be safe and remain in compliance with state and federal regulations for drinking water.

For additional guidance on the development of a long-term water management program, customers may visit the Centers for Disease and Prevention website at cdc.gov or cdc.gov/coronavirus/2019-ncov/php/building-water-system.html.