General Hydroponics GH1514 Ph Control Kit

by General Hydroponics

• General hydronics Ph control kit
• Contains ph up which add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level
• Contains ph down which uses food grade phosphoric acid to lower the pH to the proper level
• Designed to work superbly in hydroponic environments as well as with both soil-less mixtures and soil grown plants
• Measures 4.8-inch in length by 3-inch in width by 5.8-inch in height

Product Details

• Product Dimensions: 5.8 x 4.8 x 2.7 inches ; 1.5 pounds
• Shipping Weight: 3 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000BNKWZY
• Item model number: GH1514
• Average Customer Review: 4.4 out of 5 stars  See all reviews (119 customer reviews)
• Amazon Best Sellers Rank: #152 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • #2 in Patio, Lawn & Garden > Gardening > Gardening Tools > Soil Testers

Product Description

Ph control kit contains ph up which add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level, Contains pH down which uses food grade phosphoric acid to lower the pH to the proper level and also contains pH test indicator fill a test tube halfway with nutrient, add a few drops of ph test indicator and observe the coloration of the liquid in the test vial. Use 3 drops per 5ml of solution. Measures 4.8-inch length by 2.7-inch width by 5.8-inch height.

Most Helpful Customer Reviews

86 of 94 people found the following review helpful

5.0 out of 5 stars PH Control April 26, 2009

By Ben Cole

Amazon Verified Purchase

I've used it one time and it was very effective. Since purchasing this kit I've read a book on beginning hydroponics--apparently you can use vinegar to lower the PH and baking soda to raise it it you don't want to spend the money on this kit.

45 of 50 people found the following review helpful

5.0 out of 5 stars Just what you need if you don't have a meter January 27, 2010

By Edward L. Shepherd

Amazon Verified Purchase

I bought this pH test kit instead of a digital pH meter. A good digital pH meter is fairly expensive and a cheap meter could have questionable accuracy. Plus, I have had experience using digital pH meters at work a few years ago, and they are just hard to deal with, not as far as using them, they are easy to use to test the pH of something, but they can easily fall out of tolerance and need to be calibrated, you don't necessarily know when the reading is off and it needs to be calibrated, as in the pH measurements you've been getting were wrong for a while and you didn't know it, the probes have to be kept wet or not depending on the model of meter, not to mention they are a sensitive electronic device and you have to just be careful with them.

So therefore, I got this pH test kit and it works great. Sure, it's a regular test kit and doesn't give you the absolute exact pH like a meter would, but if you need the pH of something to be in a particular range, as in water or nutrient solution for plants, this will certainly do the trick.

But I have to say that whatever you test probably needs to be clear or close to it, since you fill a vial half full and then put 3 to 5 drops of pH testing solution to observe the resulting color change to get the pH. In other words, I'm thinking you may not be able to test the pH of Kool Aid or tea or something, but water or water mixed with plant nutrients where the color is only slightly changed would be fine.

21 of 23 people found the following review helpful

5.0 out of 5 stars good stuff September 17, 2009

By StaticApnea

Amazon Verified Purchase

Works very well in controlling ph levels in soil and hydro setups. The color chart and indicator solution are very easy to work with. Takes me an extra 1 minute or less to adjust ph of nute solution. Good stuff. Consider the soluble powder version of the up and down if you want it to last longer. Also you get more for less shipping