Thanks for all the helpful advice.
My friend is a Jobbing Gardener who has been with us for nearly twenty years, he is single and lives alone in a small,very small, semi-detached bungalow. He needs help to cope with all the problems in life. Someone gave him a computer a few years back, he keeps it in the loft in case he ever needs it.
The present situation has occurred because he has become like Queen Elizabeth the First about bathing. It takes 10-15 to fill the bath and he says that he has not got the time to waste.
I will try to get all the info requested and see where we go from there.