Been in my house for 30 years. The past year I've been getting an increase in a gurgling sound when some of the fixtures are used. Also, in a main floor wash room there is a near constant odor similar to sewer gas (I am on a septic system). My research indicates that I may have an obstructed waste venting but I have no clue as to how to check for that.
Before I am forced to hire a professional for this I am hoping I can receive some good advise and recommendations from this group.
So, . . . . .
Thanks -