How can I increase the pressure ?

You need special white key to suit this boiler and need to insert it in to the hole under the boiler at botton little away from the left. there is grey hexogen type bush under the boiler somewhere in the bottom in the middle and you need to turn anticlockwise to fill water and then close when reach to one. more information is in the manual if you have one or download from internet

Mr K
December 2009