We recently moved into a house with a water meter. When I tried to set up a direct debit they said £49 per month. That seems a lot to me for 2 adults + 2 kids who don't wash very often. We were paying about £300 a year in our old (unmetered) house. Is £49 per month reasonable or should I stick to paying for actual usage twice yearly, at least until we see how much water we're using?