[makeitfunky]

Originally Posted by Roperunner420

I know I have to cut the calmag right after the stretch, mainly because the cal mag a use has a bit of N in it. Also I believe the plants demand for calcium diminishes in late flower. I usually switch to a chleated mag supp. Just a possibility I hadn't heard mentioned.

thanks - yeah all the calmag I can get from the local shop has N in it. The last run with bad N tox was 6/9 and epsom only. So in this case that's not the problem but it could be.

Its strange they dont sell just CalMag

[hazyfontazy]

same water source as me ,,its shit ,mines undrinkable ,,reeks of chlorine ,,ph the other day was 8 ffs ,fucked my grows up for ages till i realised ,,get an ro machine

[UncleBens]

My ph has been around 8 lately also, thought my ph meter was broken. Its really nice water though, no bad tastes at all. Ec of .2 also, so must be pretty clean?

Im going to need to start multiple feeds too, they are looking thirsty an hour before lights out now...

[makeitfunky]

Maybe my rooms are setup badly.

I can use the upstairs bedroom of an empty terraced house and vent in to the chimney
Currently:
I setup 4x600w lights and grow 8-9 plants
10" fan 10" Filter
225L reservoir outside the room to stop it getting hot in summer and getting slime problems
DTW with 2 fast flow(blue) drippers in each pot 8-10L (am trying 6.5L now)
2 12" air circulating fans in room but not pointed directly at plants

I find it really difficult to keep up RH as the humidity is blasted straight up the chimney it can be as low as 30% when the plants are small. Small humidifers seem to make no difference and when I run a large centrifugal humidifier (HR50) I encounter other problems from all the water but at least the RH goes up.

If you anyone has any suggestions on how to grow 2.4KW room better please give me some suggestions.

Constraints are 4mx4m room, Chimney vent, no acc, max 3600w, max 9 plants, need to be able to leave for 3/4 days when necessary so must be automated water

[makeitfunky]

Originally Posted by hazyfontazy

same water source as me ,,its shit ,mines undrinkable ,,reeks of chlorine ,,ph the other day was 8 ffs ,fucked my grows up for ages till i realised ,,get an ro machine

from severn trent


The supply to this area is from a blend of sources from our East Midlands Strategic Network

Same?

Also how are you buffering the RO? cut with tap? or use up/down

[makeitfunky]

I have RO for the humidifier so am thinking of switching. The only thing is as the other growers in the area that hand water these 20L pots of coco with 6oz plants do OK.

I grow multifeed DTW in smaller pots and do crap....

[makeitfunky]

One of the other differences is my friend with the big pots just vents outside the room and in to the house which has the benefit of vastly improved RH as the humidity is being pulled back in. This f*cks the house up though through condensation everywhere including the windows and making it smell. Obvs this also creates massive heat probs in summer

Is the chimney vent just a bad idea? How do other people properly vent a bedroom or similar?

[Bush Dr]

Originally Posted by makeitfunky

the other growers in the area that hand water these 20L pots of coco with 6oz plants do OK.

I grow multifeed DTW in smaller pots and do crap....

HGO, Dansbuds and myself plus more coco growers have regularly pulled 8+ Oz from 3.5 pots

[makeitfunky]

Originally Posted by Bush Dr

HGO, Dansbuds and myself plus more coco growers have regularly pulled 8+ Oz from 3.5 pots

I know.... Ive read the posts.... I'm fully determined to get this to work. I am prepared to do whatever it takes to get on top of this

[makeitfunky]

Originally Posted by Bush Dr

If you've just transplanted then put them in 14/10 for 6 days and switch your light cycle to night time, leave your circulation fans on 24/7

I do just need a bit more info. I've not flipped them yet but they are ready. What does the 14/10 do? I've not heard of this before