It would be OK in early labour but I don't think UK midwives encourage giving birth in the bath.
I would imagine it would be very uncomfortable.
The baby needs to be delivered underwater, so that it doesn't gasp for air.
To make sure of that, you'd have to be pretty much flat on your back, or at least reclining, and immobile. There'd be no way you could lean on the edge of the bath for support as you could with a pool.
Also, temperature is important, and there just isn't enough water in a bath to moderate the temperature easily.
Ricki Lake did. And in a normal sized NYC apartment bath not some mahoosive celebrity jacuzzi. There's a clip of it in her documentary "The Business of Being Born" but you should be able to find some clips on YouTube.
Just that really ... planning a home birth but for many reasons it isn't practical to have a birth pool. I really like the idea of birthing in water but my bath would be the only feasible option and just wondered if it is, well, feasible. Would love to hear thoughts/opinions/experiences.