I can respect that you want to keep it private.
What are you running? S9s or Avalon's?
Pure bitcoin only or do you mine other crypto's too?
We have S9s and T9s. All going strong. I heard that the Avalon is more reliable, I don't know. Haven't used it. But we haven't had any trouble with our S9s and T9s. We had 6x S7s which is also great, but only 4.7TH/s. But you can get it fairly cheap in SA now.