Earlier this year, when I was on vacation, I had a glass of water with every meal. With lemon. I liked it. A lot. So, when I came home, I thought ... I'd drink more water if it had lemon in it.
Wow--what a concept!
One of the reasons I haven't been drinking enough water is that after a while it seems to get "stale." A flat, metallic taste. Guess what? Pour a BIG mug of water, toss in a lemon slice, and no more flat taste, even if it sits for an hour or more.
I've even got so I like hot water with just lemon in it. And, I can use the same (thick) lemon slice all day. I just keep refilling the cup.
Are you fully hydrated?