God knows, quite a lot
I pay about £150 a month on my water bill, at a guess that would be about £100 for window cleaning.
About 4-5000 l a week I reckon.
that doesnt seem right adam......i claim £30 a month for expenses for water usage for window cleaning so around £360 a year.....im on a meter and DI only....I use around 1800-2000L a week
i dont understand how your bill could be £1200 a year just for window cleaning even if your using an RO......
Well it's £150 a month ish, I think it was £127 but went up recently so something like that.
That's for a house with 4 of us and including the window cleaning.
We do have a lot of baths to be fair lol
I use about 500l a day probably 4 days a week and my R.O is set to 60/40 so be knocking on for 5000l of water used a week.
I'll have to check actually, I was paying about 50 but got in arrears when I moved in as it was estimated for the first 6 months so I don't know what the actual useage is.