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 TomCollins
Registered: 10/06/09
Posts: 2,943
Last seen: 1 year, 4 months
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 PH Rise and EC drop; tap water and biofilter... weird. 
#416288 - 05/12/10 04:16 AM (14 years, 11 months ago) |
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Well I have this water supply tank in my grow area. I've been using the water out of here for the past 2 days.
 
I put in about 40litres of tap water last week and corrected the PH to 5.5. Today, the PH is about 8.0. Now here's the weird part: I took 1 litre out of the tank in a bucket. The PH read 8.0. I took a stick and dipped it in PH Down Solution (Emphasis on dipped.) I then dipped the stick in the bucket with 1 litre of water. I checked the PH of the water in the bucket, and it read 4.0.
Also, over the course of one week, the EC in the tank has dropped from 0.7-0.5. In PPM, thats about 440-300.
Any clues as to why this happens? My guess would be because of fluctuating temperatures, but I could be wrong.
Again, there is nothing but plain tap water in there.
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andyistic said:
Ok so let me bring you idiots up to speed.
The admins are tired of this shitfest being made the joke of the weed community on the Internet.
Edited by TomCollins (05/12/10 05:48 AM)
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