| | |  | Misc | Home » » » General Hydroponics GH1514 Ph Control Kit | | | | | | | 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. | | | Features: | |
• 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 47.6-inch in length by 3-inch in width by 3-inch in height
| | | Product Details: | | | Product Length:
| 5.8 inches | | Product Width:
| 4.8 inches | | Product Height:
| 2.7 inches | | Product Weight:
| 1.5 pounds | | Package Length:
| 7.9 inches | | Package Width:
| 4.2 inches | | Package Height:
| 2.4 inches | | Package Weight:
| 1.15 pounds | | Average Customer Rating:
|  based on 41 reviews |
| | | | Customer Reviews: | |
Average Customer Review:
 ( 41 customer reviews )
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Most Helpful Customer Reviews
63 of 68 found the following review helpful:
 PH ControlApr 26, 2009
By Ben Cole
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.
15 of 15 found the following review helpful:
good stuffSep 17, 2009
By StaticApnea
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
27 of 30 found the following review helpful:
Just what you need if you don't have a meterJan 28, 2010
By Edward L. Shepherd
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.
7 of 7 found the following review helpful:
Works greatMay 21, 2010
By Nebula Haze
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.
8 of 9 found the following review helpful:
 Works great!Feb 09, 2011
By Karth
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 some pure sulfuric acid (battery acid sold at most automotive supply stores for very cheap).
See all 41 customer reviews on Amazon.com
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