Chosen Solution
The piping under the kitchen sink seems to be less than effective. I’ve attached photos & would appreciate suggestions on how I can reconfigure. Thanks
arch not sure if it is your pictures or your drainage pipes are not sloping the right way. It appears as if your drain goes into the garbage disposal. You’d have to get that fixed for sure. Also, it looks like you are having some vent issues. Hard to see, but can you ty to tell us what the last component next to the wall is It does look like some kind of vent….
@arch It looks like whoever did this wanted only one p-trap but clearly didn’t install it properly. Also since there was no external venting available, they used an internal air admittance valve which is not a problem but it does require you to check it’s functionality occasionally as that could also be a culprit (if everything seemed to work well before). Example of how it works:
Photo provided courtesy of this site Example of this valve is here: https://www.amazon.ca/gp/product/B0069KD… Lastly, you know as everyone has told you, that slope is WAY wrong. Here is a sample photo of what it “should” look like:
This is about as optimal as you can get. Everything is draining down. The possible exception is the disposer, the black pipe out of it seems about a 2 cm too long. Remove the connection and hacksaw off a bit and replace the connection.
This is a very common problem. Most often, drain pipes get clogged due to grease buildup. I have heard of such problems thousands of times. More often than not, water comes from the bathroom or kitchen. A friend of mine had a clogged drain pipe. I came to the rescue; we decided to try different remedies first. But as it turned out, the remedies here were not vital. We remembered that companies do this, so we turned to one of them for help. They know why my kitchen sink is backing up. It was the best way to get rid of the dirt in the pipe.
I think you should replace the piping under the kitchen sink. Thank you for enclosing photos to help you understand what the problem is. The structure is too big and weighs not a little, which is not safe. If you do something wrong, you could flood the kitchen or break the drain pipes. I would not advise changing the configuration of the kitchen plumbing drain yourself but rather using the services of an experienced plumber. I know a good plumber who has changed the plumbing and heating near me, so I recommend him.
