Weird #plumbing issue. In warm weather, our toilet and drains sound hollow, gurgles, etc, when flushing or draining, like when the tub is drained. In the cold months, it is fine. Last year we had the system snaked 100%. No clogs–been an issue since we bought house in 2019.
I am thinking the warm weather, wind, etc is causing negative air pressure through the main roof plumbing vent
We've spent almost 5 years trying to solve our warm weather plumbing issue.
My grandfather had an issue with his house (not plumbing related) that he spent 50 years trying to solve. It kept him going. He'd give up a for a spell then go back to try to find a solution. In the end, his issue out lived him.
Maybe this plumbing issue will be my lifelong house issue to try to solve. lol.
@paul
Just guessing. If there's only one plumbing vent through the roof, maybe some of the fixtures are too far away horizontally and the vent for them is running horizontally in the attic before it connects to the stack that goes up through the roof? A Kaiser vent might be right for those locations. (I know, they can cause problems too.)
All the fixtures are within 12 feet of the main roof vent.
We have a vent under the bathroom sink and kitchen sink. We had them installed two years ago, hoping they would solve the warmer weather plumbing issue.
Even the main pipe to the road sewer connection is less than 30 feet in length from the roof vent.
No issues with the pipes, like collapse, clogs, etc.
Only happens once the temps get around 70 degrees F.
@paul
OK just keep Kaisers in mind. For even temporary, that way you might isolate certain fixtures that are the problem. Kaisers are cheaper than a plumber visit...
@paul When you had it snaked, did they use a scope? Did they follow the lines all the way to where it connects to the main? Also, how old is the house and plumbing? If the house is less than 50 years old, it probably has PVC, which means less likelihood of collapse, tree roots, etc. If it’s older than 50, it probably has clay pipes, which means you could start having those problems. Tree roots would grow in the summer months, which is why you might start noticing it then.
@paul Okay. That means there is probably an issue with the vent. It is probably inadequate, not positioned for best performance, or something is partially obstructing it. Check it for an obstruction. An animal or something could have fallen down it. If it’s clear and If you’re not having any backups, I wouldn’t worry about it.
@CAman They ran the scope down it, too. No issues with that. We also increased its height from the roof itself a few years ago, hoping that would solve it.
There are no backups, but it does cause really slow draining sometimes, esp the shower/bathtub, and occasionally the toilet will get a burst of air that will splatter water. The last one is rare but does happen.
A lot of times, you're standing in a couple inches of slow draining shower water.
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