Every plumbing service soon gets to know the pet peeves of their customers. Along with slow-moving drains, low pressure and a high water bill, a toilet that won’t stop running is a thorn in peoples’ sides.
1 Jiggle the handle. If that solves the problem, the issue is likely that the chain is wrapped around the flush handle arm. You can fix this by taking the cover off the toilet tank and straightening out the chain. You may want to cut the chain with wirecutters if there’s more than an inch in excess chain. That should help prevent the problem in the future.
2 If jiggling the handle doesn’t work, the next step is to see if the tank is leaking. There are toilet dye tablets, but you can use food coloring if you like (not red, it can stain your tank. Blue is your best bet.) Drop the dye into the tank and wait a few minutes. If there’s coloring in your toilet bowl, you have a leaky flapper. Turn off the water, flush the tank, remove the flapper (it’s usually a simple snap-on fitting) and head down to your local home supply store for an exact match.
3 Not the flapper? Check the float. Does it stick? Mineral buildup can sometimes cause the float to stick. If this is the case, it will have to be switched out.
Those three steps will account for 90% of toilet problems. If it’s still running (or you just don’t feel like messing with it yourself) give My Plumber San Diego a call at 877-697-5862