lzicc
New Member
I purchased this house last year. There is a septic tank that gets pumped up to the city sewage manhole. Prior to this, the septic tank pumped uphill to a leach field, but since then city sewage was put in.
2 weeks ago, my basement toilet would flush but the water backed up. After investigating, I saw that the septic tank was full to the top. I pump it out into a side yard with a sump pump. The toilet started flushing properly after that. I thought that the pump went bad so I replaced it with a new one. The tank filled up again and I had to manually pump it out into the side yard. When the tank filled up the last time, I could hear the pump working, so I let it run all night. The next day I looked in the tank and the level wasn't any lower but the pump was still running.
The manhole where this pumps to is about 300' with a 20' rise from the septic tank. That's an estimate.
The discharge pipe that goes from the septic tank to the manhole is 1 1/2" and looks to be schedule 40.
Of what I can think of, either the discharge pipe is clogged or broke. When this first happened with the old pump, when I pulled the manhole cover, I could see water pumping into the manhole from my line, but it was a very low flow. That I why I replaced the original pump with a new one thinking that the old one was not working correct. But that didn't fix the issue. The new pump has a head pressure of about 60' which should be large enough for my rise and length I would think.
I don't know if there are 2 tanks or one big tank underground. I only have 1 access hole, but it could be 1 tank with a baffle in it to keep the solids from getting pumped.
I can't really snake the pipe due to length and size. I'm not sure what to do. What are the chances that discharge line could have clogged or broke between the septic tank and the manhole? It's schedule 40 which is pretty rugged buried underground.
2 weeks ago, my basement toilet would flush but the water backed up. After investigating, I saw that the septic tank was full to the top. I pump it out into a side yard with a sump pump. The toilet started flushing properly after that. I thought that the pump went bad so I replaced it with a new one. The tank filled up again and I had to manually pump it out into the side yard. When the tank filled up the last time, I could hear the pump working, so I let it run all night. The next day I looked in the tank and the level wasn't any lower but the pump was still running.
The manhole where this pumps to is about 300' with a 20' rise from the septic tank. That's an estimate.
The discharge pipe that goes from the septic tank to the manhole is 1 1/2" and looks to be schedule 40.
Of what I can think of, either the discharge pipe is clogged or broke. When this first happened with the old pump, when I pulled the manhole cover, I could see water pumping into the manhole from my line, but it was a very low flow. That I why I replaced the original pump with a new one thinking that the old one was not working correct. But that didn't fix the issue. The new pump has a head pressure of about 60' which should be large enough for my rise and length I would think.
I don't know if there are 2 tanks or one big tank underground. I only have 1 access hole, but it could be 1 tank with a baffle in it to keep the solids from getting pumped.
I can't really snake the pipe due to length and size. I'm not sure what to do. What are the chances that discharge line could have clogged or broke between the septic tank and the manhole? It's schedule 40 which is pretty rugged buried underground.