Is it normal to fill a 2nd cup of tea from the hot tub?

So i bought a hot tub a few months ago, and I set up in the backyard. Now that the weather is getting cooler, I like to take my tea out there and soak at night.
The problem was, I drank my tea too fast, and was left thirsty in the hot tub.
So I've devised a plan- I'll take my cup of hot tea with me to the hot tub, and after I'm done, I'll fill up cup with the hot tub water, and drop a fresh bag in!

I'm only putting this on here because a friend of mine found the whole thing very interesting.
I'm looking for people to weigh in here...

Side notes. I live alone and I'm the only person to use the hot tub.