Section Env-Wq 1108.17 - Filter Cleaning(a) The owner of a PBF shall change or clean and disinfect all cartridge filters when the pressure differential between the influent and effluent lines of the filter reaches 6 pounds per square inch (psi) or the manufacturer's recommended pressure differential, if less than 6 psi.(b) If no means of measuring the pressure differential is provided, cartridge filters shall be changed or cleaned and disinfected at least once per day.(c) Cartridge filters also shall be cleaned and disinfected in a concentrated chlorine solution or replaced in response to a violation of Env-Wq 1108.12.N.H. Code Admin. R. Env-Wq 1108.17
Derived from Volume XLI Number 19, Filed May 13, 2021, Proposed by #13198, Effective 5/1/2021, Expires 5/1/2031 (see Revision Note #3 at chapter heading for Env-Wq 1100) (formerly Env-Wq 1105.17)