Flex garden hose

I have one in the fiver great for occasional use, won't stand up to daily use, and not for potable water.

Not for drinking water, but it's nice to have around the trailer for other uses! The maximum PSI for a trailer is around 30-45 psi and drinking water hoses are usually white, but in rare cases, they're blue.

Hundreds of reviews on Amazon. I doubt it would be much different on here.

I don't see any mention of it being tested and approved for potable water. It may not matter for your use.

While it sounds like a great solution, there are far more negative reviews at Amazon than positive. It doesn't sound like it is any better than the "junk" hoses, which are quite a bit cheaper...