Funny, this very topic came up in another forum I just posted in. Anyways, yeah, different strokes for different snakes. Here's how it is in our household;
Mr. Biggles started the whole thing (our 6.5 ft. BCI) when we got him a larger water bowl for his tank. He loved it. Soooo, one day we were taking Gopher out of his cage for a slither around the house and I guess he saw Mr Biggles all laid back soaking in his water bowl so he figured "Eh, what the hey..." so within a day or two he started doing it also. Humphrey, our "gifted child" (regular BP) one day was out cruising and I guess he happened to take note in that little chick-pea sized brain of his that both Biggles and Gopher were soaking and decided to also join the Miami Beach Club, though he isn't in it nearly as much as the other two. The funny thing is we had Gopher and Humphrey for quite a while before Mr Biggles came on board and Gopher nor Humphrey ever soaked in the water bowl until after Biggles arrived and started doing it. Okay, maybe it isn't that funny.
Anyhoo, our BCI and BCC both love the water, particularly the bigger Colombian. We run the water not at warm, but I would say 'tepid'. We periodicaly add warmer water slowly over time just so he doesn't chill down too much. We also remove all the shampoo bottles (all 6 of them - must be a girlie thing to have half a dozen different shampoos and conditioners I guess) and I rinse the tub well too before introducing any of them into it. We check constantly while any of them are in there and leave the door open and light on. The Colombian will spend anywheres from a half hour to an hour or two just laying there with his head propped up against the side of the tub. He won't budge even when we are adding water. Humphrey is at the other end of the spectrum and after a little squirming around a bit settles in and stays with his little head just barely out of the water and is probably dreaming that he is massive 26 foot, 250 pound anaconda in the jungles of South America waiting for a young croc to swim by. But alas, after about a half hour or so I pick him up with one hand and it's back to reality.
Can you tell I'm just killing time? But it's all true though, I swear.
Jeff