I have a boiler system, about 9 years old, with copper pipes. Many of those connections and handle faucets have a green crust. Is this a sign of something wrong? What do I do? Should I be concerned?
Plumbing – Should I be concerned about a green crust on the copper pipes on the boiler
copperplumbing
Related Topic
- Plumbing – Safe way to close gaps around copper pipes
- Water – Should I replace all the copper pipe in the heating system with PEX
- Plumbing – Copper failing under the house
- Replacing faucet copper pipes with stainless steel, need help
- Plumbing – Green crust around water heater exit pipe
- Water – How to stop copper pipe corrosion (green copper stain in sinks and tubs)
- My copper water lines burst, was that actually a good thing for the steel pipes around them
Best Answer
When copper oxidizes, it turns green.
Usually there has to be some kind of catalyst to cause oxidation. Potential catalysts include salt, iron and any kind of acid.
Acid will form in water due to dissolved carbon dioxide. Usually if copper is getting green, it is because it is getting wet. In the case of a boiler, this could be due to water in a humid environment condensing on a cold pipe.
A quick fix is to clean the pipes by rubbing with scotch brit pads, polish with a metal polishing pad (do not use metal polishing compound, just a dry pad), then rub the pipes with a 10% solution of lye. Lye is powerful stuff, so handle it with care and use rubber gloves and eye protection.