Sorry to be a party breaker, but I prefer to warn you now before it's too late.
This type kind of a site can't sustain itself.
You're doing a very big mistake, a mistake most of us who've ran faucets did in the past.
Adsense. You'll eventually get banned. Adsense + faucets + 2017 = Worst possible combo.
Even without getting banned, your volumes would increase big and your site would become unsustainable, due to users not needing to reload any pages in order to generate coins, and while they all do is generate coins, there's going to be the point where the bubble will burst.
Adsense knows when a user is active on the site, why he's active. They are the internet, they know everything.
100k minimum withdrawal. Nothing wrong with this, but this means that you can run away with people's money whenever SHTF with google or/and other networks.
My friendly suggestions is, reduce it at least to 50k so people can at least earn some sats before anything happens.
I hope you never need to close your site, but we should be realistic
I know but for now adsense is the best choice for me, i will move to other ad networks soon.