Plenty to choose from!
All sorts of regional Irish, Welsh, Scots and English accents, some changing noticeably even to visitors over only a few tens of miles, some much more subtly across cities! :-)
I don't know what accent you are trying to spell there though. I live in the land and I've never heard anyone pronounce can't and water like that! :-)
Londoners tend to drop the middle 't' from "water". Otherwise, English accents generally vary the "wa" sound in that word from a strong "wor" to a more open, "wah", with the stress on the first syllable.
Can't varies from a definite "carn't" (rhyming with "car") to something vaguely approaching rhyming with "cairn".
It's very hard to spell accents properly in a simple text-editor!
This even before you consider dialect words.
