On Tue, 12 Jul 2005 12:54:49 +0000, s--p--o--n--i--x wrote:

Slightly O/T but does anyone know if rust particles will stick to a
strong magnet?

Yes and there is a device marketed to collect the rust in CH systems using
a magnet as the water circulates.

I'm not sure that the brown rust is magnetic. However I think it
probably is as it is the element Iron itself which is magnetic not a
chemical property of compounds.

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html