Every spring I used to have problems with my kitchen drain going slower and slower. Solution, put a cup of salt down the drains about once a week. Buy it in the box, so you don't run out too fast. It kills the little roots that sneak into the drains in the spring time. It really works.
I guess that's ok on sewer lines but if you have a septic tank it will hurt your drainfield. look at: http://www.septicdrain.com they got info on what will help your drains.
Login using the form on the top of the page to post feedback (if you are a registered user). If you have not yet registered, click here to do so. It's FREE!.