Add Yahoo as a preferred source to see more of our stories on Google. Getty Images You've brewed your cup of joe. Then, when you're cleaning up the kitchen, you pour the coffee grounds down the drain.

A plumbing expert explains why pouring coffee grounds down the drain is a bad idea—and what you should do instead.

Add Yahoo as a preferred source to see more of our stories on Google. Pouring coffee grounds down the drain can cause serious plumbing issues because they clump together instead of dissolving. When ...

You read the headline correctly. We’re discussing the T-trap not the P-trap. First, a little Plumbing 101. The P-trap is that P-shaped curl in the drain below the sink (and other plumbing fixtures) ...

You've brewed your cup of joe. Then, when you're cleaning up the kitchen, you pour the coffee grounds down the drain. The garbage disposal will take care of everything, right? Not exactly. Coffee ...