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Josh91

Iws flood and drain

Hi guys I use iws flood and drain with pebbles, what are your opinions on this system, are you getting good results? If you have mastered this system do you have any tips? 

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Best advice I can give is keep the timer on one flush a day while they are small and let it go to 2 flushes when the have stretched. Always drain your tank and don’t just top up and add more nutes. Stick with a and b and leave the PGRS alone. Flush them before harvest.

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Thanks for the advice I always drain my tank completely and start from scratch if not you never know what’s in there.

What do you use to clean the system out at the end ?

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I always used a weak bleach solution and they flushed it out with plenty of water afterwards. 

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Was worried about leaving traces, in the past I have chucked loads of ph down in there and let it run through for a couple of days and then cleaned it out not sure if it’s a good thing to do.

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I use a weak bleach solution because when I read the cleaning solution bottles down the grow shop that’s all it was. I found 60/40 coco/pebbles better than pebbles personally but I didn’t run more than 2 runs just pebbles. If your feeding off a grow chart use it as a guide not gospel. Learn what signs the plants give you. You’ll grow miles better weed. All those bud swelling additives late flower increase yields but your ganja will be crap. Less is more. I’ve been contemplating doing another IWS run, I’ve still got my kit. You might have inspired me.

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I only choose iws flood and drain because I like the freedom of being able to leave it for a couple of days ( 220l res) and obviously you can move them around,  only ever used pebbles haven’t got any experience with coco, what are the benefits of mixing coco? Thanks for your advice I don’t know any other people that share my hobbie or use iws for that matter.

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a friend ofmine uses hydroton in his iws (pebbles)

he waters 3 times a day during lights on in veg, and 4 or 5 times a day in bloom

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I normally start from 1 feed a day by the end about 10 feeds a day I just time how long it takes to fill each pot up and do short  feeds so they take what they needs and drain.

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