Plumbing Code Requirements And Sizing Guide For Residential …water softener size can be reduced by installing the softener downstream from the individual wsfu ratings to obtain a total wsfu rating for the entire house. 4. Use the total wsfu rating…
Plumbing Code Requirements And Sizing Guide For Residential …water softener size can be reduced by installing the softener downstream from the individual wsfu ratings to obtain a total wsfu rating for the entire house. 4. Use the total wsfu rating…