Can you get herpes from a hot tub?


I just found out that two people who were in our hot tub have herpes. People were around the whole time, so they didn't do anything they shouldn't have. There were other people in the hot tub after them. I have long since changed the water, but could other people get herpes from the water even if the people there didn't actually do anything?
Oh, and yes there were chemicals in the water. The spa salts and stuff.