Just had a new bill from Severn Trent and my DD has increased again to £37. We are in a average 3 bed home and take showers and use washing machine most days once a day so standard useage. How does this compare with you all? Here's my useage for the past 4 years and I can see it goes down considerably between Nov16 and May18 and then shoots straight back up to where it was before Nov16. The only thing I can think of is the wife bought one of these blow up hot tubs last year and we filled it twice. That still doesn't explain the useage drop that started in Nov16 though.