Hi All, I've been having problems with the plumbing in my new home. When purchased in October, there was a back up in the kitchen sink. I cleaned out both traps (I found a whole potato and other weird food items and we do not have a garbage disposal) and snaked out the pipe and the water seemed to flow well. About a week later the dishwasher began to back up into the kitchen sink. I dumped some drano down the sink, which helped the water flow and the back only persisted when the dishwasher was actively draining. After it finished draining, the water emptied quickly. Yesterday, I went into the basement to find my laundry basin filled with black, smelly water. I emptied the sink, cleaned the trap, snaked the pipes, and used about 1/2 a bottle of the commercial strength draino. After dinner (we washed 2 plates, and hour hands, but did not run the dishwasher) I found I had about 2" of water in the laundry basin again. The standing water is cloudy (not black), but smells like draino. My next idea was to purchase a longer snake and run it as far down the kitchen drain as possible and hopefully get into the pipe that connects our drains to the city sewer system. If that doesn't work, I'm out of ideas to try. Any other suggestions? We have city water and sewer. There are 2 drain pipes that join just after the trap on the basement sink, one comes from the kitchen drain, and the other I assume comes from the upstairs bathroom (sink and shower). The shower has also been slow draining ever since moving in.