Section 675IAC14-4.3-295. Disinfectant; oxidation; chemical feeder equipment

   Section S4225 Disinfectant; oxidation; chemical feeder equipment is added as follows:

(1) S4225.1 Disinfectant equipment, oxidation equipment, and chemical feeders, hereafter referred to jointly as "equipment", shall be capable of precisely introducing a sufficient quantity of an approved disinfecting agent or other chemical to maintain one (1) milligram per liter of free chlorine residual.

(2) S4225.2 Manufacturer's instructions shall be used in installing chemical feeders. The installation and use of chemical feeders shall conform to the following:

(A) Where using chemical feeders, it is extremely important that they be installed downstream from the filter and heater. An exception is equipment specifically labeled for feeding to the suction side of the pump.

(B) If the chemical feeder is equipped with its own pump, it shall be installed so it introduces the gas or solution downstream from the heater and, if possible, at a position lower than the heater outlet fitting.

(C) Chemical feed pumps shall be wired so they cannot operate unless the filter pump is running. If the chlorinator has an independent timer, the filter and chemical feed pump timers shall be interlocked.

(D) A check valve shall be installed in the piping between the heater and the point of chemical feed.

(3) S4225.3 The installation of ozone generating equipment shall be limited to low ozone output generating equipment. The installation and use of ozone generating equipment shall conform to the following:

(A) Installation of ozone generating equipment shall allow for indications of operation or malfunction to be easily observed. The equipment shall be installed in a manner such that a malfunction will not endanger operators or pool users.

(B) Ozone generating equipment shall be used in conjunction with other chemical treatments to meet the chemical operating parameters in this section. Normal maintenance and monitoring of water chemistry shall be followed.

(C) If the equipment is capable of exposing maintenance or service personnel to ozone concentrations exceeding five hundred (500) parts per million, a self-contained breathing apparatus approved for ozone usage shall be provided. If a distinct, pungent odor is smelled when the ozone generating equipment is operating, the equipment shall be shut down, and the area shall be ventilated. The equipment shall be inspected and repaired as necessary by qualified service personnel.

(D) Manufacturer's recommendations shall be used to determine where and how ozone shall be injected.

(Fire Prevention and Building Safety Commission; 675 IAC 14-4.3-295; filed Mar 25, 2011, 10:19 a.m.: 20110420-IR-675090789FRA; readopted filed Aug 4, 2011, 8:35 a.m.: 20110831-IR-675110254RFA)