Is the chlorine from tap water REALLY that bad?

KindBud420

Well-Known Member
been using tap water the WHOLE grow... i have had 0 problems... I never let it sit outside...

I use an aeroponic setup... and use like 30 galons of tap water ph'ed...

well sounds like your tap waters ph is probaly around the 5.6-6.5 range. if it was 7.5 or above your plants would def. burn or turn yellow.
i dont think marijuana is an acid loving plant...is it?
 

jondog123

Well-Known Member
well sounds like your tap waters ph is probaly around the 5.6-6.5 range. if it was 7.5 or above your plants would def. burn or turn yellow.
i dont think marijuana is an acid loving plant...is it?
Actually, when I first started I didn't know that I had to ph my water and my tap is about 7.9. Surprisingly I would have to say that my plants weren't harmed at all and that was straight from seed. After that I started filtering/phing my water. Now I am too lazy and have been using phed tap water. When you get into flowering, filtering all that water was a hassle for me. They love the phed tap water as far as I can tell. My local water ppm is about 130 which isn't bad.

I'm glad you started this thread, because I'm calling bullshit too. My plants would be dead by now if you couldn't use straight phed tap water. :joint:
 

We TaRdED

Well-Known Member
I think it really depends on your location.
very true, but i would think they would have a cap on how much chlorine is within acceptable levels.

clorine is bad for sure
prove it! im not doubting it, just trying to get the facts st8. ive heard two completely opposite opinions. and until i see conclusive evidence i will still think they are just opinions.

I'm glad you started this thread, because I'm calling bullshit too. My plants would be dead by now if you couldn't use straight phed tap water. :joint:
thanks bud! ive used tap water on some plants and dechlorinated water on others and i didnt see a difference on anything. i ended up marking which plants got what, because i ran out of water that was sitting. like i said, i couldnt tell a noticeable difference myself. i only did this once because i was scared to give my plants chlorinated water. i would really like to get the facts st8.


can we just talk about the chlorine in the tap water and not the other stuff. thanks for the input guys!
 

cheetah2007

Well-Known Member
prove it! im not doubting it, just trying to get the facts st8. ive heard two completely opposite opinions. and until i see conclusive evidence i will still think they are just opinions.
Water and Cannabis - 420 Magazine type Chlorine in your browser "find" section. Tap water in some areas highly chlorinated, which does not seem to harm Cannabis; and many fine crops are raised with water straight from the tap. But chlorine could possibly affect the plants indirectly, by killing some beneficial micro-organisms in the soil. Chlorine also makes the water slightly acidic. However, neither effect is likely to be serious. Some growers have asked whether they should use pet-shop preparations that are sold to remove chlorine from water in fish tanks. These preparations generally add sodium, which removes the chlorine by forming sodium chloride (table salt). This solution does not harm the plants, although repeated use may make the soil too saline. Probably the best procedure is to simply allow the water to sit in an open container for a few days. The chlorine is introduced to water as the gas Cl2, which dissipates to the air. The water temperature also reaches a comfortable level for the plants.
 

Bamm Bamm

Well-Known Member
damn I wish mine was 7.6 mines 8.6 outta the tap and 90ppm... There can be even worse things in some tap water... theres websites that you can check your citys water on
 

We TaRdED

Well-Known Member
prove it! im not doubting it, just trying to get the facts st8. ive heard two completely opposite opinions. and until i see conclusive evidence i will still think they are just opinions.
Water and Cannabis - 420 Magazine type Chlorine in your browser "find" section. Tap water in some areas highly chlorinated, which does not seem to harm Cannabis; and many fine crops are raised with water straight from the tap. But chlorine could possibly affect the plants indirectly, by killing some beneficial micro-organisms in the soil. Chlorine also makes the water slightly acidic. However, neither effect is likely to be serious. Some growers have asked whether they should use pet-shop preparations that are sold to remove chlorine from water in fish tanks. These preparations generally add sodium, which removes the chlorine by forming sodium chloride (table salt). This solution does not harm the plants, although repeated use may make the soil too saline. Probably the best procedure is to simply allow the water to sit in an open container for a few days. The chlorine is introduced to water as the gas Cl2, which dissipates to the air. The water temperature also reaches a comfortable level for the plants.
so its only bad for organic soil grows? right now im doing "hydro"(hehe) with soilless mix. im also using nonorganic nutes.

chlorine is bad for soil grows as it kills helpful beneficial bacteria, also worry more about added flouride than the chlorine.
so chlorine is not bad for with nonorganic nutes growing hydro? the flouride doesnt evaporate i would assume? would make my weed plants have some nice pearly whites(teeth) though.:mrgreen:
 

pinksensa

Well-Known Member
IF you wanted to debate this you should have put in toke or talk...people are responding because they think you have a genuin question about water not because they want to back n forth the topic with you. THE FACT is water is different everywhere if you wanted to debate the facts of chlorine in your local water you would need to get w/ your local growers....my water is so diff from yours we could never discuss what you do to what I do??? get it?? ITS DIFFERENT EVERYWHERE.......
 

Boober

Well-Known Member
Yeah, water is different everywhere. I let mine sit open anyway just to get it room temp. (and it sure couldnt hurt)
 

Blunted1

Well-Known Member
Chlorine will kill any beneficials that are added to your water. I use to live up north and the water there didn't need to be filtered and no chlorine was added. Where I live now the ph is 8.1 and the ppm is over 400. I definately need a filter where I'm at now. I noticed a big difference in my grow after I got my filter.
 

We TaRdED

Well-Known Member
IF you wanted to debate this you should have put in toke or talk...people are responding because they think you have a genuin question about water not because they want to back n forth the topic with you. THE FACT is water is different everywhere if you wanted to debate the facts of chlorine in your local water you would need to get w/ your local growers....my water is so diff from yours we could never discuss what you do to what I do??? get it?? ITS DIFFERENT EVERYWHERE.......
w/e bro. maybe your not following me. im trying to just talk about the chlorine aspect of tap water, nothing else, and how it effects marijuana. yes i know water is different from place to place, BUT IT ALL HAS CHLORINE IN IT AND THUS HAS A SIMILARITY, thats what i want to talk about bro. im sure there is a cap on how much dissolved chlorine is acceptable for drinking water. let me repeat IM WANT TO TALK JUST ABOUT HOW CHLORINE AFFECTS WEED GROWTH! i thought i wrote that in here a couple times allready? and why is not my question genuine? ahhh w/e bro.
 

pinksensa

Well-Known Member
Im not a bro or or dude or whatever. Why cant you understand that chrlorine is adjusted based on a given area and the water source? Its not standard all over the US, check out jamiemichelle's thread...in Illinois the water has so much chrlorine in areas that when she flushed the other day w/ straight tap her plants went to shit and they all figured out it was the chrlorine...I was born in raised in Arkansas I know for a fact that I would use that tap water for my plants but I dont live there I live somewhere that the chrlorine concentration is very high due to the water source and it is also full of other bad nasties like calcium..hard calcium that would fuck with your hydro system and my soil.....ITS DIFFERENT EVERYWHERE
 

pinksensa

Well-Known Member
ITs not that your question isnt genuine its just that its a moot point, because the control factors in your hypothetical question arent all the same so you cant say there is a broadbased answer as to whether it affect a plants growth or not.
 

atlantadirect

Well-Known Member
I think the subject is "Does the low level of chlorine in all municipal water harm plants?" So it doesn't matter that your water is different from his, both of your waters will have varying amounts of chlorine. You're right that the levels are different, but it is possible to answer the question in a general manner.

I would say "No, the low levels of chlorine in tap water aren't likely to harm your plants but the other dissolved minerals might. If you are worried about harming the beneficial bacteria in your soil you can evaporate the chlorine out by letting the water sit in an open container for a day or two or by having an air-pump pump air through an airstone in the water for an hour or two or by boiling the water and letting it return to room temperature. I'm not sure how important beneficial bacteria are to hydroponic grows like flood/drain or DWC, but if I knew I had tap water with low ppm I wouldn't even bother to evaporate the chlorine out. It might even help to prevent root rot. I don't know that for sure, but that would be my guess."
 

We TaRdED

Well-Known Member
Im not a bro or or dude or whatever. Why cant you understand that chrlorine is adjusted based on a given area and the water source? Its not standard all over the US, check out jamiemichelle's thread...in Illinois the water has so much chrlorine in areas that when she flushed the other day w/ straight tap her plants went to shit and they all figured out it was the chrlorine...I was born in raised in Arkansas I know for a fact that I would use that tap water for my plants but I dont live there I live somewhere that the chrlorine concentration is very high due to the water source and it is also full of other bad nasties like calcium..hard calcium that would fuck with your hydro system and my soil.....ITS DIFFERENT EVERYWHERE
ok chick/lady/miss/dudet/C(see) yoU Next Tuesday! i did read jamiemachelles thread about how she said it messed up here plants. i also read that quote from al b fucts thread and thats why i got :confused:! i just thought that there would be a limit to how much chlorine that would be acceptable in drinking water. I DO UNDERSTAND THAT THE WATER IS DIFFERENT FROM PLACE TO PLACE. i just didnt know that they could put enough chlorine in the water to kills plants, i wonder how good it is to drink if it will kill a plant? do YOU understand my point? it was a question specifically to chlorine, with my ASSUMPTION that there was an approximate average to the chlorine content in tap water from place to place!!!!!!!!!!

im sorry that im not as knowledgeable as you when it comes to tap water specs. it was a genuine question to a wise and kind sole that could help inform me of my lack of information. i was not trying to bicker with some see you next tuesday. i dont see why you had to undermine me because of my silly little question. you could have been nice about it and relayed some info to me in a nicer way. w/e i think you need to bongsmilie
 
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