The answer to 'sump pump slow draining' is that a slow-draining sump pump is often caused by a clogged or obstructed pump intake, a faulty check valve, or a problem with the discharge line. Symptoms may include the pump running frequently, water not draining properly, or the pump not turning on at all.
Some common solutions include cleaning the pump intake, checking the check valve, and inspecting the discharge line for any blockages or kinks. If the issue persists, it's best to call a professional plumber to diagnose and fix the problem, as they can properly assess the system and make necessary repairs.