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They way you have it configured, with the water level higher in the buckets so that it can drain up top and pour back to the rez... 1 - Your pump is providing the pressure to push that water up to that level - so that pressure from the higher water in all the buckets is pushing back against...

yup. You have to treat it like it's an infectious disease

The flowers that get pollinated early on will develop ripe seeds if they continue on to the end of the flowering cycle. Anywhere theres a white hair, it can be pollinated. Once enough flowers are pollinated, the energy starts going into growing a seed. It will still keep budding, but slower...

The part about installing an RO. There are all sorts of models, but the Hydrologic just has a garden hose adapter on the water input line. You can get a garden hose thread faucet adapter and just attach it there. There's a 1/4" drain line and another 1/4" product line. It just works on the water...

A 9 week veg? 2 plants, make 3 at the most. 9 weeks will get you some pretty large plants and overcrowding will negatively impact your yield. It will reduce light to lower bud sites and leaves, cause high humidity and air flow issues - and a PM risk, and it will be inordinately difficult to...

There's no way of knowing without knowing the details of your system, nutes and feed schedule

I'd pull those 3 right away and treat the rest.

Your water is on the borderline I'd say. A 212 ppm TDS is about 320 ppm (700 scale) as an EC measurement. While today the TDS might be 212 - the town does show a swing of about 200, so it could potentially go up. The ca/mg in the water is good but you also have a lot of bicarbonate and...

you need to make sure that the rock wool isn't staying wet. It needs to be high enough that it can drain and not keep the stem too wet causing damping off. Any type of absorbant material inside your hydroton can harbor pathogens which can cause root rot also if not up above the wet level enough...

I have a 12, and I can check when I get home - but they don't have a fuse. I'm thinking that there may be some sort of surge device for each side - I'll check when I get home. But even so, I don't know if it's really replaceable. I would also think that if it was one of those, that you would...

Love Dude Grows!

Ok - there's a bunch of stuff here and a lot of it you are correct. As far as what Canna recommends - it's on their web site and in their nutrient calculator. Don't go by what someone has said. There is zero ca/mg in Canna nutrients - none. At 700 ppm or 7000 ppm. It needs to be added. But, you...

Here's their online nutrient calculator - http://www.cannagardening.com/growguide They aren't recommending a starting EC value, as they are assuming that there is some sort of ca/mg present, whether it's in the water already, or if you're adding it before you mix your nutes. .2 EC is what they...

Canna Coco A and B isn't DESIGNED for tap water, because tap water quality varies enormously from city to city. It's more designed for a more pure water, but CAN be used with tap water if the quality is good enough. Your water is very good quality with low ppm and therefore isn't an issue. You...

It's a good idea to have them in each bucket as well as the rez. As far as is it absolutely necessary, I don't know. But, It's definitely better to have more than you need.

Instead of an under current, you have more of an upswell. Maybe an Upswell Deep Water Culture - UDWC?

Agreed. I do about an 80% changeout about every 2 weeks. In the top off rez, I mix it more toward the next week's mix so that as it starts to use it, it starts to steer the whole mix gradually toward the next week's mix. I only do a full drain at the end of the grow - or if there was some...

Those plants look happy. Keep it up!

Yep. I've never seen a system quite like this but I like it. Being a DIY and engineering (water treatment engineering) kinda guy, I totally dig looking at different designs so that maybe I can keep improving mine. Thanks for sharing! I'm psyched to follow your grow.

I run my level 2" above the base of the netpots for almost the entire grow - this is by CC's recommendation. This makes for useable roots right from the net-or down instead of thick ropes through an air gap that only transport nutes. Here's how I think of an air gap in any DWC... The water is...