hi Softus thanks for replying
up untill a couple of days ago there would be enough to fill the bath but now there isnt and it has not been used through the day as i have diliberatly left it to see if the tank would fill up
we have an oil fired hot water boiler and a copper hot water cylinder plus a pressure pump as our water comes from a bore hole. and for no apparent reason we only seam to get half a tank of actual water before it runs out, both the hot and cold,and we can only get water from our mains feed ie...