Hi Patrick, We use rain water at my local club, keeps the boilers clean but remember to filter it so as not to clog your injectors up. The preserved railway I work n had severe problems with boilers due to water treatment so be careful, they now use reverse ovmosis plants that are expensive but have aleady paid for themselves. It is worth having a word with some chemists on how to neutralize the lime. Dave. ----- Original Message ----- From: "Patrick Coppens-Marian Lynch" <develop@xxxxxxxxx> To: <modeleng@xxxxxxxxxxxxx> Sent: Thursday, October 18, 2007 11:22 AM Subject: [modeleng] Water treatments Hi Gents! I was wondering, if anybody has any wisdom to offer on H2O treatment,in steel boilers Over here (Flanders), there are very high concentrations of lime scale in the water,so much so, that even household goods (coffeemaker, washing machine...) only last half of their normal lifespan. So if any of you have formula's receipts, good/bad experiences with commercial products, I would like to know of them. Thanks Patrick MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.