The answer to 'drain cleaning slow draining' is that a slow-draining sink or tub is usually caused by a clogged drain. This can be due to buildup of hair, soap scum, food particles, or other debris in the drain pipe. Symptoms include water draining slowly or not fully draining, foul odors, or even water backing up in the sink or tub.
The first step is to try a DIY drain cleaning method like using a plunger, a drain snake or auger, or a chemical drain cleaner. If those don't work, the clog may be deeper in the pipes and require professional drain cleaning services. A plumber has the right tools and expertise to thoroughly clear the blockage and get your drains flowing freely again.