septic pump within the tank
- Thread starter manni19
- Start date
- Status
- Location
- Massachusetts
Real fun stuff.
I do not believe they are classified other than disgusting.
The ones I have worked on did not have much inside for us, the pumps and floats where connected by rubber cords that ran up and out of the tank. No JBs in the tanks at all.
On others the floats and sometimes the motors stayed dry and only a drive shaft went into the tank.
I do not believe they are classified other than disgusting.
The ones I have worked on did not have much inside for us, the pumps and floats where connected by rubber cords that ran up and out of the tank. No JBs in the tanks at all.
On others the floats and sometimes the motors stayed dry and only a drive shaft went into the tank.
- Location
- Illinois
- Occupation
- retired electrician
I thought that they were Class I, Divison 1 as a result of the methane that is produced as the waste products break down.
Don
Don
- Location
- Mission Viejo, CA
- Occupation
- Professional Electrical Engineer
This is usually a ?local practice? issue.
The general subject is discussed in NFPA 820. While methane is definitely flammable, it diffuses very quickly and, in fact, is generated in relatively low volumes for residential applications. Hydrogen Sulfide (the ?smelly? stuff) is also ignitable but has a relatively narrow ignition range and is also generated in fairly low volumes. The typical residential application is usually considered ?unclassified? by most jurisdictions.
Larger applications for major waste waster treatment facilities usually have a mix of Division 1 and 2.
The general subject is discussed in NFPA 820. While methane is definitely flammable, it diffuses very quickly and, in fact, is generated in relatively low volumes for residential applications. Hydrogen Sulfide (the ?smelly? stuff) is also ignitable but has a relatively narrow ignition range and is also generated in fairly low volumes. The typical residential application is usually considered ?unclassified? by most jurisdictions.
Larger applications for major waste waster treatment facilities usually have a mix of Division 1 and 2.
- Status