Backstory: last winter we had an issue where Toilet #2 of our 2 toilets (the one furthest from septic tank) would intermittently not flush. The tank would drain completely and refill properly, the water in the bowl would churn a bit, but the water level in the bowl stayed fairly constant. The only way we could get this toilet to flush would be to flush the toilet closest to the septic tank (Toilet #1) a couple of times. Then the water level in the bowl of Toilet #2 would drop a bit and it would flush properly for a bit - hours or days - until it stopped, at which point we would have to repeat the process.
Sometimes (but not always) during the season this problem shows up, when flushing Toilet #2, Toilet #2 will do some extra “glugging” as the water goes down. Sometimes Toilet #1 will spontaneously lower its bowl water level and have some of this same “glugging” at the time Toilet #2 is flushed (without it having been flushed itself)
This was annoying, and got to the point this past spring when I was ready to call a plumber to have someone take a look. But around that same time in spring the problem went away. It’s been 7-8 months and we’ve had no issues with either toilet.
Two days ago the same problem started again. Same exact situation. Toilet #2 only.
Is this a venting issue, or something else? And perhaps more importantly, why would this problem be seasonal?
- toilets are on the same floor
- ranch style home
- Septic System
- Western New York State
- Toilet #2 is less than 10 years old, wax ring less than 2 years old
- We’ve lived here just over 6 years
- This problem only started a year ago