In reply to a post by kamelion:

I disagree. If the gas company decided to put a bigger mains pipe into your street would you accept having to pay more for using the same amount of gas?

The cost of laying that pipe has to be paid for by somebody. In fact a great many old steel pipes have been replaced with plastic over the last 20 years. Guess who paid for that?

The cost of replacing outdated sewerage systems is paid for by the customer. The costs go up and up, my usage has not changed.