Feb 21, 2008. #1. gainesvillegreen Registered+. It really depends on the contents of the water more than the actual TDS levels; however, I would say the 250-300PPM area for tops. I have used it higher (400PPM) with no problems though, so... Feb 21, 2008. #2. herbie the love bud Registered+.
By Jennifer Rosenberg. The Zimmermann Telegram was a coded message sent from German Foreign Minister Arthur Zimmermann to Germany's ambassador in Mexico, Heinrich von Eckhardt, in January 1917. The British managed to intercept this coded message and were able to decipher it.
Revelation of the contents outraged American public opinion and helped generate support for the United States declaration of war on Germany in April of the same year. The message came in the form of a coded telegram dispatched by the Foreign Secretary of the German Empire, Arthur Zimmermann, on 11 January 1917. The message was sent to the German ambassador to Mexico, Heinrich von Eckardt.