A fixed water supply is where you are billed for a predetermined amount of water based on factors including the size of your property, the number of occupants and your property’s *rateable value*. This means you pay a fixed amount, regardless of the amount of water you use.

A metered water supply is where you are billed based on your consumption measured by your water meter. This essentially means that you pay for the water you use and includes a daily standing change. This is a daily charge that you pay for the cost of turning on the water supply each day. This is a fixed charge set by the water company and cannot be changed or disputed.

*The "rateable" value of a property is a value assigned to it by the Valuation Office for the purpose of calculating water charges for households without a water meter. This value was established between 1973 and 1990 and is determined by various factors, such as the property's size, area, condition, and the availability of local services. Therefore, two properties of the same size on the same street may have different rateable values.