Difficulty locating clog, 50 foot snake and still no luck
I was running the washing machine the other night and all of a sudden both my tub and shower started backing up. As the washer was in the spin cycle and getting rid of all its water, the shower and tub continued to fill with water.
I shut the washer off and let things slowly drain until the next morning, most of the water had receded, but I was pretty sure the clog was still there. I tried some drain cleaner, but it did not work. But during the process, it was obvious that the clog was quite a ways down the line. After letting the drain cleaner work for some time and after beginning to flush with hot water, it took a good five to ten minutes for the length of the drain line to fill up and for me to figure out that the clog was still there.
After that, I started snaking from the shower drain (the lowest drain in the house and the first to back up). I snaked with a 25 foot 1/4" snake and never reached the obstruction. I then progressed to a 50 foot snake, still never reached the clog. When snaking, I only hit two elbows, one about 18" down and another a few inches after that. I called the utility to see if they could give me any insight on where my cleanout might be located and if they thought the clog might be on their line.
After talking with the utility they told me that my line connects with the house behind me, so since the neighbors are not complaining it's probably on my part of the line and still my responsibility.
Well, I did some measuring, from the drain on one side of the house to the furthest drain on the other side is only about 35 feet. So, I'm pretty confident that the snake is going in the right direction, i.e. towards the main line, or otherwise I would have hit another elbow. From my shower drain where I'm putting the snake in to my property line is only about 45 feet, so I'm wondering what other possibilities might be feasible. Should I call the utility back and insist that they check the lines?
I've tried locating the cleanout on the side of the house where the utility said it should be, but I haven't had any luck. Even if I did find it, it would probably be close to the shower drain and wouldn't get me much closer to the clog. Or maybe it's time to buy a longer snake? Any tips on finding the sewage line in the ground? Due to the sand that came up in the water that backed up gives me the awful feeling that there is a breach in the sewer line.
Any input/advice would be greatly appreciated. I really don't feel like calling a professional unless I have to. I work in irrigation plumbing, but don't have a ton of experience in residential.
Thanks.