Can we use TSE (Treated Sewage Effluent) Water for Fire Fighting use? Does NFPA has any recommendations related to the same?
TSE water can be used as fire protection water. NFPA standards do not have any specific requirement, but as long it does not corrode piping and does not have particles that can plug sprinklers or piping, it is acceptable to be used.
Complementing the information given by Emmanuel above. If the TSE water is to feed a sprinkler system, NFPA 13, edition 2019, subsection 5.2.1 (7) states that a water supply for this system shall be: " A source of recicled or reclaimed water where the building owner has analyzed the sourse of the water and the treatment process (if any) that the water undergoes before eing made available to the sprinkler system and determined that any materials, chemicals, or contaminants in the water will not be detrimental to the components of the sprinkler system it comes in contact with."
Also, 5.1.5 indicates more requirements for water supply treatment, specially to reduce the influence of MIC,
Hope it helps,
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