Will a drip pan catch a bursting water heater?
Standard drip pans cannot handle the massive volume of water released when a water heater suffers a sudden internal failure. Rusted heating element threads cause enormous leaks that bypass the pan entirely and completely flood the first floor. This leaves people trapped replacing the exact same unit every few years because they cannot afford an alternative system.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Installing a drain pan connected to a proper drain
- 2Placing a water monitor or sensor alarm
- 3Conducting monthly or quarterly visual checks
- 4Flushing the water heater annually to clear scale buildup
- 5Hiring an electrician to check for stray voltage and grounding issues
- 6Switching to a tankless gas system
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“First one was installed in 2019 and started leaking where the top heating element is but it’s not the element, it’s like under the threads… Replaced it in 2023.”source ↗
“The exact thing happened again now, 3 years later…. I do not want to get another one but I can’t afford to buy something else right now.”source ↗
“I know it’s a matter of time before it leaks, or worsts, bursts and floods my whole first floor.”source ↗
“I have seen many instances where it’s not a slow leak, it’s just a heating element that’s rusts out or something internal that creates an enormous leak, where a drip pan wouldn’t even catch it.”source ↗
Where this came up
People with this problem also raised
- 6Why is there water on the floor around my new water heater?
- 4Why do my pipes knock when multiple faucets are running?
- 2Why do P-traps lose water when the ejector runs?
- 27Water heater going hot and cold with weird refill noises
- 119How to fix a leaking water pipe in a tight space
- 6Water company says we have a leak but we can't find it