Boiler Leaking Water

When this becomes an emergency

• There's a wet ring spreading across the cellar floor under the boiler.
• The gauge needle has drifted well above its normal operating mark.
• The relief valve discharge pipe is running rather than occasionally weeping.
• Fresh orange staining has appeared on the jacket seams or the near-boiler piping.

What a pro does

Finding the source matters more than stopping the drip. Water shows up on the floor from a relief valve doing its job, a circulator seal that's given out, a threaded fitting that corroded through, or an automatic feed valve overfilling the system, and each of those means something different for what happens next. A tech follows the water uphill. On a cast iron sectional that's been in the cellar for forty winters, seepage between sections is the outcome nobody wants, because that's a replacement conversation rather than a repair, and confirming it takes a careful look at where the wet trail actually begins. Killing power and closing the feed valve is the sensible move while waiting.

Frequently asked questions

Boiler Leaking Water?

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