Water heaters have long been a problem in modern homes.

The problem is getting worse, with an estimated 1.4 million water heaters out of service nationwide in 2016, according to the American Water Works Association.

The American WaterWorks Association said it had not yet tallied water heater replacement costs.

Many homes have not yet replaced their water heat-efficient water heater as well, leading to problems for homeowners.

The most common culprits are leaks from the plumbing or the faucet.

Here are some ways to avoid a leak from your water heater.