On Thu, 17 Mar 2011 11:19:00 -0000, "GB"
wrote:

I need a very small water softener to produce a few litres of soft water a
day - for a humidifier. I can only find large appliances to soften an entire
house's supply. Any suggestions?

Brita water filter or an Elga deioniser
www.shop.elgaprocesswater.co.uk