My sister just bought this for me for Xmas. The sipping…
My sister just bought this for me for Xmas. The sipping function doesn't work because very little liquid is dispersed through the holes (one main and two smaller holes). There was a piece of plastic plugging the main hole, but even after I removed that it still doesn't work - although the main hole at least looks like it is big enough for liquid to be dispersed through it.
This is the latest (for me) in a fairly lengthy list of outdoor recreation items made in China by reputable companies that has serious design flaws. This is a trend I have noticed in recent years.
I might have got a lemon, but if you can't test it don't buy it.