Just had a leak in my heating system. Cut out the offending pipe and spliced in a new bit. Looking at the old is full of green (i assume copper) corrosion.

What causes this? The pipe is the feed to the boiler header tank.

All you need to know about copper pipe corrosion!

in summary the builders messed up when they built the house.

Hmmm, who'd buy a house from a building company "Wilcon"? well the previous owner is who!



well its fixed now, just got to dry the house out.

I had a series of problems with my central heating last winter.

Radiators full of sludge, cold patches in the rads, and pin hole leaks all over!

Turns out, having followed advice from plumbers on here, that my pump was running too fast, so the water was going up into the header tank and circulating through there. This aerated the water in the c/h system leading to the corrosion.

Drained the system, took all the rads off, ran gallons of water through them all, took the header tank out, cleaned it out, put the rads back on, refilled the system, added corrosion inhibitor and then turned the c/h pump down from 3 to 1!

So far this year no problems at all.

HTH


Mike

its strange really, how bad copper is for the job. It radiates heat fast, corrodes at the drop of a hat, conducts electricity (bad for safety), and its expensive. Whereas plastic pipe is non of the above but is regarded as a bodge by many. Perception will change with time i suppose. I cant stand plastic myself, just cos it looks messy compared to well done copper

quote:

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Originally posted by MikeR
Help - what causes copper to corrode?

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quote:

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Originally posted by MikeR

Hmmm, who'd buy a house from a building company "Wilcon"? well the previous owner is who!

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