Thrush caused by sex in spa or pool?

Patient: Hi there, my boyfriend is persistent in asking me to have sex in spa and possibly in the pool, it smells strongly of chlorine , it is a communal spa and pool and the last few time we spent by the pool and in the spa having sex I have got bad thrush, I’ve explained .. But he says if I shower after I’ll be fine. What are the real risks or facts about sex in and by spas and pools

Symptoms: Thrush sore hurts chlorine spa sex