Following are a number of back-translations as well as a sample translation for translators of Isaiah 8:6:

• Kupsabiny: “‘I am like the water of Shiloah that flows slowly. But these people have refused to trust in me and are afraid of Rezin and the son of Remaliah.” (Source: Kupsabiny Back Translation)
• Newari: “Because the people of Judah have rejected
  the peaceful flowing waters of Shiloh and have honored
  King Rezin and King Pekah son of Remaliah
  with rejoicing, ” (Source: Newari Back Translation)
• Hiligaynon: “‘Because this people rejected the water of Shiloah/[Shiloa] which flows gently, and they-rejoice in making-ally with King Rezin and King Pekah,” (Source: Hiligaynon Back Translation)
• English: “‘I have taken good care of you people,
  but you have rejected that, thinking that my help was very little,
  like the little canal through which water flows from the Gihon Spring into Jerusalem.
  Instead, you have been happy to request help from King Rezin and King Pekah.” (Source: Translation for Translators)