Wouldn't buy a BIBO again. Wasn't told that in addition to filters, there was also a need to purchase cleaning solutions yearly at a further cost of up to £40. After buying the solution recently due to the BIBO leaking, there was no instructions sent. I emailed BIBO for instructions but while waiting for a reply looked online and carried out the procedure as shown, as I needed to stop the water dripping constantly. NOWHERE on the web-site did it say leave the solution in the tank for 8 hours, so when I finally received the emailed instructions I felt as if I'd wasted £19.95. This machine has far too expensive running costs.