Miriam - no I've never used tri-flow, but there again if a machine is stuck I don't buy it. There again, you never know what might come your way.
My brother's mother in law, who died last year, was originally from Wisconsin. The different accents in that family were ridiculous, a different one for each generation - booming Wisconsin from a tiny little old lady, Home Counties girls' boarding school from her daughter, and South London sprawl (awful vowels) from the grandchildren. All that round one dinner table.
If you want a bit more fun with accents, go to my Youtube channel and click on my favourites and find the video of Fashion 1938. The commentary is very dated, exceedingly posh, and the clothes are gorgeous.