As your teacher likely said to you repeatedly "check your working" there is no way it costs £33 to fill this..... A cubic meter of water costs around £1.80 by your reckoning that's 18.5m3 or 18.5 tons of water in this!
It holds around 5.5m3 so roughly £9 to fill.

Do they have meters on council estates?

Bath tub?

Here in the UK the word 'tub' in this scenario is superfluous.

Me thinks you watch too much American TV.

Essentially a bath tub???

I need this just now just to cool down!

it will cost £33 to fill it on a meter!

these are good fun, the Mrs and I loved it more than the kids. you can relax in it all day.

I don't think the point of the comment was complete accuracy on cost.
Ironically my teacher never accepted rough answers. They repeatedly told me my answers had to be accurate.

Watch out with these though as the deal I'd good price wise the pool /bath needs to go on pretty level ground. I had a similar one and gave it away because it wouldn't sit right and got one that inflated all around it for better stability which is required when mental kids are playing in it

It's half priced in stores, picked up one for £20.