What follows does sound very very similar.
So in that list of remedies that Lee posted a url for, when it said floor drain and recommended a plug or a standpipe,, it meant just that, a drain in the middle of the basement floor, right?
How can someone put a standpipe in the middle of the room? I guess they'd build a box around it so it looked like a post holding up the ceiling?
Yeah, although my situation might be different. The water level int he stream rises slowly but when it gets higher than the manhole, at first it's just a trickle but when it's an inche or two higher, it pours in pretty fast. Of course it still has to fill up the entire sewer, maybe for miles downstream, so maybe the water level in the sewer rises as slowly as the water level in the stream.
I went to the manhole today, and the top of it was at least 3 feet below how high the stream has gone up at times. Where did I get the idea they made the manholes higher? I thought they were maybe 6 inches too low, but this one is more than 3 feet too low. The next one upstream, I don't know if it floods, and I found a third one, not quite 600 feet upstream but a lot farther from the stream, and it might not be on the main sewer. It's right by a a couple houses. No one outside today, but I'll try to find someone I can ask if it floods there. Other than that, it will be hard to find more manholes.
You could see it flapping? Look down the hole and see it. I guess if I could my head close enough to the wall and had a flashlight, I might be able to see it too, but otoh, the water is not clear, I assumed. Although maybe it is? You could see through the water? . You coudl hear it flapping?
I tried that, but I had a hard time setting up the siphon. I was using a random garden hose and it was much too long to just reach the sump .
That's a darn good question, because though I've only had 1/8", yesterday I figured out that steam level is five feet above the basement floor. Sure when the water reaches the sump, that pump kicks on, but I don't know which carries more water. Now I have another reason to get a second or a bigger sump pump.
Wow!
Ugh. Still, probably worth it. I wonder if one of thse could service 4 houses, right adjoining each other, each 21 feet wide.
Oooh. So if it worked for four houses, maybe the fifth house would get the part that's pumped out.
Manually is bad. I can never predict when it will flood, and I'm not always around. I can't just close it every night it might rain, and every day in rainy months. I could close it every time I went out of town.
Still I loved this story and it's good to know others have had this problem too.