It appears that I have a normally closed check valve installed in my house on the main sewer line. Most of the recommendations I've seen are calling for a normally open backwater valve to be used. In one article it even says the following:
Installation of a check valve on your home’s main sewer line is prohibited because it would stop the air circulation needed to vent the plumbing system. “Normally open” valves, which only close in the event of backflow, can be installed in some houses.
Does it make sense? Should I be thinking about replacing the check valve I have with a different type?
Thanks.
Installation of a check valve on your home’s main sewer line is prohibited because it would stop the air circulation needed to vent the plumbing system. “Normally open” valves, which only close in the event of backflow, can be installed in some houses.
Does it make sense? Should I be thinking about replacing the check valve I have with a different type?
Thanks.