City tap water (600ppm) vs RO Water

during my next run that I will be starting Tuesday . I am going to run a little experiment with my city tap water that is around 600ppm , and my Ro that's around 10ppm, I'm going to use same strain trainwreck, same nutes botincare, both will be from same mother plant , I just want to see how big of a difference using city water , vs RO , in vegg stage , as well as bloom and final yeild . I'm going to grow these dwc for flower and dwc/areo for clone and vegg. Will be a four week vegg period , there will be no water chiller, both rooms will be Ac cooled . for vegg will be running a 4foot 8bulb T5 starting with one bulb and working up to either 4 or 6 bulbs by the end of vegg for flower it will be two 600watt hps .I will post a copy of my city water report , along with pics of cuttings .

Should be interesting. I'll sub for it.

your city tap is 600 ppm? that's fucked.

tightpockt said:

your city tap is 600 ppm? that's fucked.

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Yea no shit I'll post pics of the tap water on my meter as well as my city water report , my water will turn a brand new black ladle into a white ladle after a couple washes

Well this will be good contributions for all because most feel you need ro because of unknowns in tap and if you get similar or even better results with tap you are saving folks lot of time money and extra work

But 600ppm how are you even alive ? Guess the plants will be answer this

We don't drink the water .. It will give you the shits for sure !!!

toomp said:

Well this will be good contributions for all because most feel you need ro because of unknowns in tap and if you get similar or even better results with tap you are saving folks lot of time money and extra work

But 600ppm how are you even alive ? Guess the plants will be answer this

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I have tap water of the same values (600ppm)where i live now...i have been using r/o at 75% to 25% municipal water for many yrs.So save yourself the experiment that will only cost you yield in the end.

Flash63 said:

I have tap water of the same values (600ppm)where i live now...i have been using r/o at 75% to 25% municipal water for many yrs.So save yourself the experiment that will only cost you yield in the end.

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Thanx for your advice but I'm going to experiment for my self if I took everyone's word on how to grow i would have a circus for a grow opp.

Flash63 said:

I have tap water of the same values (600ppm)where i live now...i have been using r/o at 75% to 25% municipal water for many yrs.So save yourself the experiment that will only cost you yield in the end.

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What was your ppm at 75 25

150-200 ppm which is a perfect starting point for nutrients...

I used to use my city water which was around ~400-500 ppm but the biggest problem was it had really high alkalinity. Alkalinity is waters ability to resist pH change. So adding pH down would basically do nothing. I dealt with it for a long time just thinking I had finniky strains...when I switched to ro it showed immediately in my plants health. Good luck on your experiment!

Sent from my SAMSUNG-SM-G900A using Rollitup mobile app

Well what happened to the experiment?

Shit i shouldnt complain with200 ppm over here.

My tap is 450-500 ppm. I also mix tap with ro to get 150-200 ppm. I no longer need cal mag and i can see a big difference in my plants. Im saving money in wasted water from the ro filter and on buying calmag.

It is illegal, AFAIK, for a city water source to be above 500ppm TDS.

Over 700 has been determined not safe to drink. Over 500 is not recommended to drink.. This is from EPA

Your tap water is 600ppm? Holy fack!

You must be in Flint Michigan? Lol

Keep your water away from open flame...

My tap water runs 120ppm. The rain water I use is 7ppm.. I Would just use RO with cal-mag.. GL

Tone5500 said:

Thanx for your advice but I'm going to experiment for my self if I took everyone's word on how to grow i would have a circus for a grow opp.

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Why post the question if you are not going to take advice?????

Krippled said:

Why post the question if you are not going to take advice?????

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I didn't see a question. I saw a statement that he was going to try two things. I think that's admirable. I just wish he would have returned with followup results to help others. (But, even then, it probably depends on what constitutes the 600ppms in his water.).

FWIW: Like intenseneal, I mix my 800'ish ppm tap water with RO to get 150ppm. I escaped the "cult of calmag." I don't ph my nutrients (growing in soil). Everything's been fine. Even better, I would say, compared to "calmag" and phUp.