We have two centrally located jacuzzi tubs. Each are in their own separate room, along with a toilet, sink, and privacy curtain. We use them in probably 50% of all labor patients. They are a tremendous help in getting labor moving (nipple stim from the water bubbling) and relaxation in the middle stages of labor. I'm still relatively new, but I haven't heard of any pts deliverying in the tub (precip del's). Did have one that delivered 5 minutes after getting out of the jacuzzi....and another that delivered within 30 minutes from getting out (was 2cm going in...45 minutes later was 8cm and bulging membranes).
We have waterproof dopplers to do intermittant FHTs. They're ok..quality is not the best, but it works. We check FHTs q 15 min while in the jacuzzi. Also have a call bell right next to mom the whole time.
About belts...we charge the first time, then save the belts in a bag with their name on them for future visits. (We do a lot of NST's on our floor & have lots of frequent fliers). We don't wash them out between visits. They don't seem to require any washing - they stay very clean. We keep them all alphabetized in our supply closet, and make a note on their prenatal record that they have belts (we keep a copy of all prenatal records on file on our floor for every 30-32+ week pregnant pt in the area - 2 doctor groups and 2 midwife groups).
Seems to work well for us.