Quoting the FAQ on our site,
"How can I report a faucet?
Click the "Report Faucet" link at the top on the page, fill in the form. *Replies usually take upto 24 hours.
Do I get rewarded for reporting?
Yes!, You will get 1000 Satoshi for every faucet you report that is broken or empty.
Where does the payment go?
The payment is sent daily directly to your FaucetBox Account using the wallet address you provided us with."
You will only get paid once for each faucet reported.
If more then 1 person reports the same faucet at the same time ie 2 people the payment will be split. So you'd get 500 sato.
If a faucet goes dry 2 or 3 times in a week and you report it every time you will still get 1000 Sato.
Hope this helps with your answer.