I have a few questions, I have a water filter hooked up to the sink and the ph is 7.8, I have been watering my plants with regular drinking water that u get from the store. My question is can I start using the filter water instead? If yes do I need to bring the ph down? My last question is I've been seeing this post a lot on other threads and was wondering what is ro water?
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Watering question? RO/filter?
- Thread starter LIFER25
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RO = Reverse Osmosis.
Your desirable PH will depend on what medium you're using.
Here is a google image search which will bring up various charts illustrating the proper PH range for cannabis in hydroponic and soil systems: http://************/422w7gx
Edit: Well, I guess ICmag doesn't like tinyurl. www.images.google.com type in "cannabis PH range" and you should get what you're looking for. I've just started messing around with this stuff as I started using all perlite hempy buckets. I've been lowering the PH of my nutrient solution to around 6.2 and all my plants seem to like it.
Your desirable PH will depend on what medium you're using.
Here is a google image search which will bring up various charts illustrating the proper PH range for cannabis in hydroponic and soil systems: http://************/422w7gx
Edit: Well, I guess ICmag doesn't like tinyurl. www.images.google.com type in "cannabis PH range" and you should get what you're looking for. I've just started messing around with this stuff as I started using all perlite hempy buckets. I've been lowering the PH of my nutrient solution to around 6.2 and all my plants seem to like it.
At this point there's no reason to believe your tap isn't just fine without filtration. There's certainly no reason to suggest you need to buy water from the store. Any reason you're going through extra, unnecessary work and expense?
Depends on the tap in question. Personally I've gone from industrial strength metropolis water (0.5 EC) to sparkling clean, little mountain town water (too low to measure but less than 0.1) and growing has been a nightmare ever since.
There's... stuff... in tap water that helps keep pH under control. Further there are essential trace elements that nute manufacturers specifically leave out because we are expected to add them ourselves with the use of tap. Nutes will lower your pH. A quality pH Down (such as AdvancedNutrients, GeneralHydroponic's is no better than vinegar) will get you the rest of the way there.
Unless you have a reason to avoid your tap, I'd give it a try before going to the expense and work of filtered water. Do you drink your water? Cook with it? Make ice or lemonade?Brush your teeth? Bathe? Feed it to your pets? If you do any of these, there's no reason not to grow with it.
There's... stuff... in tap water that helps keep pH under control. Further there are essential trace elements that nute manufacturers specifically leave out because we are expected to add them ourselves with the use of tap. Nutes will lower your pH. A quality pH Down (such as AdvancedNutrients, GeneralHydroponic's is no better than vinegar) will get you the rest of the way there.
Unless you have a reason to avoid your tap, I'd give it a try before going to the expense and work of filtered water. Do you drink your water? Cook with it? Make ice or lemonade?Brush your teeth? Bathe? Feed it to your pets? If you do any of these, there's no reason not to grow with it.
thanks freezer, i was always under the impression that tap water is not good for marijuana plants. i will start using tap water along with my regular nutes the next time i water and see how that goes. this could save me some money from buying all these damm water bottles from the store to water my plants with lol 
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alot of ferts drop the ph on their own. i have the worst tap water ever. but due to growing organically it dont seem to matter as much. tap water contains chlorine or cloramine usually . getting rid of them helps alot. chlorine you can bubble off ,cloramine needs to be neutralized as it wont gas off.
vitamin c will get rid of chloramine and chlorine in water. just sprinkle some in your water. get a chlorine test kit and just keep adding vitamin c until it says there is no more chlorine left. the test kits are cheap. if your using hydro then chlorine could actually help.
also you can use ro water but it is more work. you will have to add back the minerals you took out such as calcium and magnesium. also it helps to add a ph buffer to ro water with potassium carbonate and citric acid. doing this really makes the perfect water to use but tap water usually works fine.
my tap water is too alkaline and changes the ph of my medium so i use ro water. I could do half ro water/half tap, but my plants have been happiest using ro water and adding back the minerals and creating the ph buffer.
also you can use ro water but it is more work. you will have to add back the minerals you took out such as calcium and magnesium. also it helps to add a ph buffer to ro water with potassium carbonate and citric acid. doing this really makes the perfect water to use but tap water usually works fine.
my tap water is too alkaline and changes the ph of my medium so i use ro water. I could do half ro water/half tap, but my plants have been happiest using ro water and adding back the minerals and creating the ph buffer.
Hey, don't feel bad. We all want what's best for our babies. We just need to remember they're weeds not hot house flowers. Best bet is give them the basics and then get out of their way.
It may be you need RO but, better to see if tap works first.
