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  • General Hydroponics GH1514 Ph Control Kit
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General Hydroponics GH1514 Ph Control Kit

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List Price: $24.93
Price: $14.75 & FREE Shipping on orders over $35. Details
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Single Kit
  • 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
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Frequently Bought Together

General Hydroponics GH1514 Ph Control Kit + HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 ppm Measurement Range , 1 ppm Resolution, +/- 3% Readout Accuracy
Price for both: $34.16

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Product Details

Size: Single Kit
  • 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.
  • Origin: USA
  • ASIN: B000BNKWZY
  • Item model number: GH1514
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (298 customer reviews)
  • Amazon Best Sellers Rank: #75 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)

Product Description

Size: Single Kit

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.


Customer Questions & Answers

Customer Reviews

This kit is easy to use and works great.
Nebula
This is a great kit for testing/adjusting ph of nutrient solutions.
Karth
Comes with a vial and dropper which is very useful when applying.
T

Most Helpful Customer Reviews

142 of 153 people found the following review helpful By Ben Cole on April 26, 2009
Size Name: Single Kit 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.
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60 of 68 people found the following review helpful By Edward L. Shepherd on January 27, 2010
Size Name: Single Kit 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.
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20 of 21 people found the following review helpful By Nebula on May 20, 2010
Size Name: Single Kit
This kit is easy to use and works great. To start, you simply scoop a bit of the water to be tested into the small clear container that comes with the kit. You then add a few drops of the pH indicator solution, and check to see what the water color ends up being. You have a guide which tells you what pH is indicated by which color. If the pH is too high, you add a few drops/gallon of "pH Down." If the pH of your water is too low for your purposes, you add a few drops/gallon of "pH Up." I grow plants hydroponically and need to ensure the proper pH of the water I use, or else my plants they won't be able to fully access the nutrients in the water. While this kit isn't as precise as a digital pH meter, I have never had any problems with my plants so it's been precise enough for me.
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30 of 36 people found the following review helpful By StaticApnea on September 17, 2009
Size Name: Single Kit 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
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18 of 21 people found the following review helpful By Karth on February 9, 2011
Size Name: Single Kit Verified Purchase
This is a great kit for testing/adjusting ph of nutrient solutions. I have tried many other testers (test papers, strips, electric testers) and this is by far the easiest to use and the most accurate. I was prepared to pay several hundred dollars for nice electric tester but now I'm so glad I didn't...testers like those require constant calibration and various solutions...this kit requires nothing at all, so easy! The ph up and ph down are highly concentrated so go easy on them! You don't want to adjust your solution more than 1.0 ph a day or you could shock your plants!

UPDATE: Ok the PH testing portion of this kit is great, HOWEVER, the ph DOWN solution is terrible. DO NOT USE IT. It is made from phosphoric acid which is bad because if you add it to a nutrient reservoir you will have massive amounts of slime growth within a day or two. Toss the PH DOWN and go get something else.
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14 of 16 people found the following review helpful By J. F. on April 11, 2012
Size Name: Single Kit Verified Purchase
I ordered this kit based on the other reviews but I was still a bit sceptical based on the description. Let me just clarify, this is a full control kit. It includes a test vial, a pipette, 1oz of pH test solution, 8oz of liquid pH UP, and 8oz of liquid pH DOWN. It works very well and is easy to use. the pH UP & DOWN are very concentrated so the 8oz bottles go a long ways. I have been very happy with this kit. I would suggest buying a few more pipettes though. If you are trying to use the same pipette for the pH UP (or DOWN) and also use it to gather a sample to test, you might skew your results if you are not rinsing it well. I am very happy with this kit.
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8 of 10 people found the following review helpful By Nathaniel Peterson on March 21, 2009
Size Name: Single Kit Verified Purchase
This kit is very easy to use. Even the labeling is simple, very minimalist. This kit will also last a very long time considering it only takes several drops to adjust water ph. I don't rely on the ph tester included in the kit, nevertheless, I still use it every time I test my water ph. I first use a digital ph meter, then I use the liquid tester that comes with the kit for a "second opinion". Works pretty well!
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3 of 3 people found the following review helpful By Waffles on June 7, 2010
Size Name: Single Kit Verified Purchase
This isnt rocket science people. This is very easy to use. If you lose the little piece of paper with the ph chart on it dont worry. Its also on the back of the tiny indicator bottle.

Just hold the water you're testing up to the back of the bottle if your having a hard time telling what color the test water turned.
Its simple. I find i use PH+ up more than i use the orange one. But im no where near half bottle gone. Plants dig it.
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