hi there sarah

i remember i was very keen on using the TENS when i was preg with #1, however i think i was told by the midwives that they cannot be used in water, i loved labouring whilst in the shower/bath and from memory my also said it was only really useful at the very start of labour, which really is not as intense as it gets closer, so i gave up the thought of hiring one.

sorry not much help but good luck