Hi, In message <585756A1-5B49-4569-A1A3-1798126AC0AC@evolution-plants.com>, Tom Mitchell <tom@evolution-plants.com> writes >Yes and it works a treat. My Narcissus bulbs are now the size of >Crinum, thanks to this amazing new technology. Now, now, and good to change the subject when replying to digests. There is a serious paper on the companies web site: http://viaqua.com/images/pdf/… Chaff - material designed to confuse. Water is complicated stuff, it has a lot of ions in, an effect is not impossible. I would want to be able to measure a physical difference in the water coming out the device. They rely on plants, and plants can be affected by many things, extra warmth in the water or minerals. -- David Pilling email: david@pilling.demon.co.uk web: http://www.davidpilling.net/