I saw something posted on this from '04, but no replies...
In Table 4.2 of NFPA 820, wastewater pump station wetwells, it lists combustible gas detection for fire protection measures. Does anyone know if this requirement refers to a permanent installation of equipment inside the wetwell?
I am...
Thanks for the reply- I think we will be looking at moving the comminutor to the gravity portion of the line. The previous engineer (the third person to touch this project) never picked up on it. There was supposedly a decision made based upon a grinder pump not being able to handle to small...
Does anyone know of an application with respect to a comminutor inline AFTER a submersible pump station?
I am currently involved with a small WWTP project (already designed) that includes a comminutor in a valve vault, after a submersible pump. After talking to the sales rep, he tells me he has...
