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Should I worry about waste water having very high PPM?

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15 replies to this topic

#1
BlueBucket

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Hi hello .. I'm into week 5 of the bloom cycle using Cyco nutes (Bloom A & B, Zyme & Swell).  Hydro, run to waste in coco coir and perlite mix (1:3 ratio) .. using 2 x 600W HPS Cultiv8 digital ballast, heaps of airflow .. air conditioned room, SCROG .. top of canopy usually between 27-30 degrees with around 70% humidity.  Have 4 plants, 3 strains (next time will be sticking to just one strain!).  The plants all look very healthy with buds everywhere .. but the waste water coming from the Blueberry plant is giving really high PPM readings, between 3.50 and 5.60 .. which seems really odd to me considering only 2.10 PPM nutes are going in.  The plants are all flushed weekly with PH adjusted water.  Should I be concerned about the Blueberry's plant's waste water high PPM reading?  Have I goofed?  This is only my second grow and I can't find anything on the web to explain what's going on .. I thought maybe algae, but can't see any and am using black water hoses and black plant 'socks'.  Can anyone offer and advice?


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#2
Serrated edge

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Ppm I don't read I use EC but if it's higher than what your putting in give it a flush at a lower ppm till it's adjusted itself .

Prob would do better with a ph water flush then back to normal ppm ,


I just got two Cultiv8 ballasts .only using one at the moment and fuck is it hot. Bloke at the shop said he's heard of it happening before so he said he'll take it back . Is your ballast hot to the touch ?
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#3
pedro de pacas

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Cultiv8 burns shit down, mates caught fire, he wasn't home would of lost his house, wouldn't piss on them

 

every ballast should get checked every week, plenty houses have burnt down over the years


Edited by pedro de pacas, 16 February 2018 - 02:30 PM.

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#4
BlueBucket

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Hi Serrated edge .. I have flushed .. and flushed with PH adjusted water.  After each flush it starts out ok, then jumps straight back up.  It's a mystery to me .. must be algae in my system somewhere.  But anyway, I'll flush it again.  And yes, my cultiv8 ballasts run warmish.  I have them sitting on bricks outside the tent.  I haven't heard of them burning houses down though .. bit odd since circuit breaker should trip if it faults.


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#5
Serrated edge

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How many litres did you flush with ?
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#6
BlueBucket

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I was flushing with around 60 litres for 4 plants in 40cm pots .. until their waste water was down to around 800 PPM .. our water here is 400 PPM.  Flushing water was adjusted to 5.7 PH


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#7
BlueBucket

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I've decided to flush it again tomorrow morning as I've just tucked them in for the night.  I'll post back tomorrow pm with result.  Thing is, the plant is doing really well regardless .. sheeesh!


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#8
Serrated edge

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Are you allowing a decent runoff each time you feed ?

A 10-20 percent runoff acts as a constant flush .

In any case sounds like the berry wants a weaker feed than the others , my guess is she's taking in more water than nutes ,,I'd give a good flush again ,,then try feeding her about 30% weaker nutes.
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#9
BlueBucket

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Maybe I wasn't allowing enough runoff for the berry .. it's the biggest plant.  Will take your advice and give a good flush tomorrow morning and reduce her nutes by 30%.  Thanks Serrated Edge .. it's good to have someone to 'bounce' off as I'm new to this and am still learning stuff .. thank goodness they are tough plants!   This grow will be better than my first attempt, but still got my training wheels on and get nervous, so appreciate your advice.


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#10
Serrated edge

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Just keep an eye on her and the others ,,if you get burnt tips on the leaves then the nuts are just a bit high .

More than often they do better with less.
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International Cannabis Cultivation Questionnaire
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WARNING/DISCLAIMER The OZ Stoners cannabis community contains information regarding cannabis & other drugs; it is designed for mature (18+) audiences only. This site in no way condones the use of cannabis by minors. The content here within this cannabis community is for educational & entertainment purposes only. Any buying/selling or trading of illegal cannabis seeds, clones, flowers, resin or oil is strictly prohibited within this cannabis community.