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ECO ENTERPRISES Headquarters: 1240 NE 175th St. Suite B Shoreline, WA 98155 1-800-426-6937 Email: ecoenter@aol.com |
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 Free with every order over $25.00 just by asking! Your choice of free gifts are now available when you place your order with Eco. Different gifts are available depending on the amount of your order. Please add only one gift per order in the appropriate catagory. Free gift item must be added to your cart in order for you to receive it - so please come back to this page to add your free gift when you have finished shopping and know which gift catagory you are eligible for. Not valid on past orders. Click here to choose your free gift! |
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pH & PPM Measuring |
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 Free UPS Shipping in the continental US on all orders over $250! Which type of pH or PPM Equipment would you like to see? pH & PPM Meters pH & PPM Pens pH & PPM Continuous Monitoring Meters Calibration Solutions for Pens & Meters |
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| Parts per million (PPM) is a way of expressing percent (%) in small amounts. In hydroponics, it is used to express the quantity of one amount of material dissolved into another (salts into a volume of water). Most plants do well between 1000 and 2000 PPM (0.1% to 0.2 % of dissolved salts). 1 tsp. of Ecogrow is approximately 600 PPM. 2 tsp. is 1200 PPM and 3 is 1800 PPM. The PPM is therefore controlled by the amount of dissolved salts used. PPM is measured electronically on meters. In Europe, the Siemen or E.C. is used I E.C. or 1 Siemen = 1 mho/cm of conductivity. To convert E.C. or Siemen to PPM, multiply them by 650. The Mho is the reciprocal of the Ohm of electrical resistance. Technical data (PPM, pH and element concentrations) are listed on the technical data sheets for all Eco products. pH is the measurement of the acidity or alkalinity of the soil or growing medium. A pH of 7 is considered neutral. A pH below 7 is acid and above 7 is alkaline. Most plants want a pH of between 5 and 7 (slightly acid). Eco produces pH-Up and pH-Down to adjust the acid/alkaline balance to be what your plants need. When selecting different plants, you should take the pH into consideration so that all plants in each system have similar pH and PPM requirements. pH adjustments can be made with either liquid or powder. Eco sells both, as well as calibration fluids to guarantee accuracy of test equipment. A wide range of pH measuring equipment is available from ECO. Rule of thumb for adjusting pH - go slow! Correct the pH a little bit, then measure until you get a feel for which way things are going. If you go too far with pH adjustments, you can really upset your system. Caution: Do not exceed a pH of 7 - a nutrient lockup can occur depriving your plants of essential elements. Always use rubber gloves when handling concentrated pH adjusting materials like phosphoric, sulfuric or nitric acid, or potassium or sodium hydroxide. The pH adjusting materials that Eco sells are all primary plant nutrients in their own right. We do not recommend using sodium hydroxide or vinegar for adjusting the pH. |
