Thanks @minifrij

I did change FunCaptcha and left empty the faucet, could only be 30,000 satoshis  

In twelve hours have made 2,500 requests to index.php

I had an attack of ip's from Ukraine guess exploiting a vulnerability on FunCaptcha. FunCaptcha disabling stopped emptying the faucet.

My error_log have this line

[08-Oct-2015 00:12:11 UTC] PHP Notice:  Undefined index: HTTP_USER_AGENT in /libs/funcaptcha.php on line 88

Anyone know anything about this?

Thanks!