Why Does My Toilet Keep Running? | Plumbers in BirminghamIf your toilet keeps running, it’s usually down to a fault inside the cistern. This is one of the most common call-outs we get as plumbers in Birmingham, and while some fixes are simple, others need proper repair.If left, a running toilet can waste a lot of water and lead to bigger issues. If you need help fast, visit our toilet repair Birmingham page.Common reasons your toilet keeps running1. Worn flush valve sealWater constantly trick...