I purchased a newly constructed home in January of this year. Shortly after moving in we started to smell sewer gas in our master bedroom and bathroom. We also smelled it alot outside the house. The contractor replaced the seals under the toilets and extended our vent stacks on top of the roof 3 feet. The smell inside the house went away however the outside smell continued. We also started to get a poof of sewer gas smell that would come up from our vanity sinks in our master bathroom. The smell would poof up when the water was continuously running for a few seconds then stop. It did it when running hot or cold water and mainly after they had sit unused for a few hours. If we let them sit unused for a few hours then turn on the water the poof of sewer gas would come up then go away. We would shut off the water and then turn it back on and no sewer gas would come up again until we let it sit for awhile again.
We spoke to our next door neighbors who moved in to their new house build by same contractor the year before and they said they also had/have a sewer gas smell as well. They only had one vent stack coming out of their house and multiple AAV values.
We called the contractor again who this time had the plumber who installed the system there also. Of course no one smelled it except us and one of the honest helpers with them. They checked the pipes on the house and they were working correctly when flushing. They took off the cap to our septic and there wasn't any smell coming from it. We even bought a sniffer device from amazon which detects Methane and it hit when the smell would poof up out of the sinks. During our discussions we found out we and our next door neighbors were on a county water line what was on the very end of the system. The contractor paid for a water test which came back good.
We asked the county to do more flushing of the system since we were on the end of the line. After they blowed us off we a few times we contacted the state regulatory agency who got them to do choline testing which results where almost 0. We started to notice the smell was in the water and tested it by filling up a cup and smelling it. They have now setup an auto flushing system on the flushing point downstream from us and we can now smell a slight hint of choline in our water which is normal to what we have smelled in the past on other municipal water systems we have had.
The smell from our vanity sinks has come back just like mentioned above. We do not smell it outside like mentioned above but its back in our sinks the same way. The only other thing we have tried was pouring bleach down both drains. I have also replaced the only AAV value that is in the house (Located in the basement bathroom) with a better quality one just to eliminate that possibility. I have also checked the drain from the hot water heater that goes out the basement floor by flushing it some.
At this point I don't know what else to try and who to hold responsible at this point the contractor or the water department or someone else. Any help or suggestions would be appreciated.
We spoke to our next door neighbors who moved in to their new house build by same contractor the year before and they said they also had/have a sewer gas smell as well. They only had one vent stack coming out of their house and multiple AAV values.
We called the contractor again who this time had the plumber who installed the system there also. Of course no one smelled it except us and one of the honest helpers with them. They checked the pipes on the house and they were working correctly when flushing. They took off the cap to our septic and there wasn't any smell coming from it. We even bought a sniffer device from amazon which detects Methane and it hit when the smell would poof up out of the sinks. During our discussions we found out we and our next door neighbors were on a county water line what was on the very end of the system. The contractor paid for a water test which came back good.
We asked the county to do more flushing of the system since we were on the end of the line. After they blowed us off we a few times we contacted the state regulatory agency who got them to do choline testing which results where almost 0. We started to notice the smell was in the water and tested it by filling up a cup and smelling it. They have now setup an auto flushing system on the flushing point downstream from us and we can now smell a slight hint of choline in our water which is normal to what we have smelled in the past on other municipal water systems we have had.
The smell from our vanity sinks has come back just like mentioned above. We do not smell it outside like mentioned above but its back in our sinks the same way. The only other thing we have tried was pouring bleach down both drains. I have also replaced the only AAV value that is in the house (Located in the basement bathroom) with a better quality one just to eliminate that possibility. I have also checked the drain from the hot water heater that goes out the basement floor by flushing it some.
At this point I don't know what else to try and who to hold responsible at this point the contractor or the water department or someone else. Any help or suggestions would be appreciated.