The answer to 'plumbing repair won't flush' is that there are several common causes, including a clogged toilet, a problem with the flush mechanism, or an issue with the plumbing system. Symptoms may include the toilet not filling with water, the water not draining properly, or a slow flush. Solutions can range from plunging the toilet to more complex repairs like replacing the flapper or fixing a clogged drain line.
For simple clogs, you may be able to resolve the issue with a plunger or a plumber's snake. However, if the problem persists or you suspect a more serious issue, it's best to call a professional plumber. They can diagnose the root cause and provide the appropriate repair or replacement services.