New Loft Grow Room - Input Appreciated

SoOLED

Well-Known Member
how many vertical feet to you have? I don't see any shadows. they are gonna to get a lot of light for sure. which is going to make them very big =)

keep that CALMAG on ready 5, cause your going to have some massive trunks no doubt.
 

loftygoals

Well-Known Member
I went and pulled out my wide angle lens to get a shot of the current LED height. I now have 720W (10x 100W COBs running about 70W each) of cheap COB LEDs in there and could get them about 5ft off the floor.

veg2.jpg

The veg room is about 6ft from floor to ceiling but is in an awkward shape:

veg1.jpg

The idea being to move the plants from there and into the 8x4 flower tents once they're big enough:

room1.jpg

Where hopefully 2200W of lighting will be waiting per tent. Should have the lights up (in one tent at least) very soon. The RDWC setups have been built. Air pumps in place. Ventilation all sorted with each area carbon filtered...
 
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SoOLED

Well-Known Member
excellent, you out did yourself for sure. keep them toping clips sharp your gonna need them.

I doubt we will not see the back wall for long.

.
 

loftygoals

Well-Known Member
Bit of fiddling today.

Put a 12 inch desk fan in a corner of the veg tent. It's slightly too strong on setting 1 so I've had to jiggle the plants around a bit.

As most of the seedlings are 8 days old I've upped the PPM from 350 to 500. Eventually balanced the pH at 5.8... I get a bit flumoxed by pH really. I have a auto pH doser which is going to go onto the flower reservoir and wanted to do the pH of the veg room manually as it shouldn't be as prone to drifting and gives me an idea of how to program the pH doser. So far I've been patient and not overcorrected and had to do the funky pH up/down dance. But it takes over an hour for the pH to settle and over that time it's really tempting to fiddle some more. Sometimes I forget to recheck for a few hours (like today) and have the plants sitting at pH 4.4 for a while :( Ahh well, live and learn eh?

Also added a light timer. Moved from 24/0 to 20/4 which I think I'll stick with for the next 2 weeks...

Most of the plants have roots coming out of the netpots and into the buckets now. You can really tell which ones got there first as there's a dramatic increase in size already. There are just 2 Purple Afghan Kush seedlings and the 2 Blueberry seedlings (to be expected as they're 5-6 days behind all the others) which haven't made it out of the netpots yet.

Now I have a bit of a quandary... As only 2 of the Blueberry seeds made it I have 2 spaces free. Now do I pop a couple of other strains I fancy? Or do I just stick with these for now? I'm thinking the sensible thing to do is just grow out 14 plants and train them to fit the whole flower area? Considering I'm planning to grab a few clones and make some mother plants (have to setup an area for mothers in autopots still) from these it seems adding more complexity for a newbie like me would be an unnecessary burden at the moment...
 

awil7698

Active Member
Hey loving the operation dude I was wondering where do you vent all your hot air I'm sure uve already mentioned earlier but I've forgotten lol
 

resinhead

Well-Known Member
Time for an update with some pics I guess...

So I have one of the tents up. Fits perfectly into place. I'm going to be using the space above the tents to hang my carbon filters and fans which saves wasting space inside the tent.

View attachment 3623395

Have started to built the RDWC system. I'm using 20L buckets (Plant!t branded which have flat sections on both sides so should form nice seals against the plumbing):

View attachment 3623388


I didnt buy enough pipe inserts (needed for every pipe connection with the plumbing system I'm using) so had to stop but all I need to do now is connect up the reservoir which will be outside the tent. Have also put a 10 socket extension in the tent which is rated at 3250W (I'll be using 2400W per tent max).

View attachment 3623404

I'm building in isolation valves so that the reservoir, tent and pump can all be separated without a flood. I'm also connecting up a chiller (Hailea HC300) via a closed circuit inside the res and will be connecting up a Bluelab Guardian for monitoring and a Milwaukee MC720 for automated pH control. Here's where all that will sit:

View attachment 3623389

I'm planning to run a drainage hose from the dehumidifier back into the reservoir too :D

Also moving ahead with my budget water cooled COB LEDs.

I'm using steel flat sections (much cheaper than aluminium) which have been painted with Hammerite straight to rust spray paint mainly to stop me constantly getting dirty hands from the bare metal. I've then epoxied on cheapo chinese aluminium water blocks and then used thermal cement to attach the COBs. The thermal cement can be separated with moderate force which means I can upgrade to Cree CXBs (or whatever I fancy) after a couple of grows if I want. I had to made modules which attach together as a massive 4x4 light wouldn't fit through the loft hatch! Here are the lights going on:

View attachment 3623392

I've used a selection of cheapo COBs as you can see. I'll be running them around 70W each so we're talking 1100W at the wall per 4x4 area. That's not quite what I planned previously but it makes my life easier when building the lights (which I'm all for! :D) For every 4x4 area there are:

4x warm white
4x cool white
2x blue
6x red

And then I've used cheapo braided hose to link the water blocks with cheapo chinese hose clips to secure the hose to the barbs. The connections are very tight (using 8mm ID 14mm OD hose on 10mm barbs with 12mm clips) so I would be very surprised if there was a leak but I'll test that soon enough :D

View attachment 3623394

The top 2 barbs will be connected together and the bottom 2 will be the in/out connections.

I can't power it all up get because I'm waiting for some power converters to arrive from the far east (resistors arrived yesterday yay!) but because I built an air cooled test unit for my seedling/clone tent I know it'll work fine :)

Oh and here's the corner where the room's intake and extractor sit. I just need some ratchet straps to arrive so I can hold the secondary carbon filter up and attach it to the bathroom extractor vent.

View attachment 3623390

This really is the business end of the build now!


Dang! Your approaching this project like an experienced pro! Nice work!!
 

loftygoals

Well-Known Member
Hey loving the operation dude I was wondering where do you vent all your hot air I'm sure uve already mentioned earlier but I've forgotten lol
Room intake is from the old bathroom extractor vent in the roof so I get fresh air coming in. Room extractor is into the bathroom (old bathroom extractor vent). So all the heat goes into the house and there is no heat signature visible from outside. I have a FLIR camera and have checked it out myself. Compared to the neighbours the roof is about the same temp and THEIR chimney stack is hotter than mine :D

I have 2 dehumidifiers ready to go for when it gets humid in the house/loft.
 

awil7698

Active Member
Room intake is from the old bathroom extractor vent in the roof so I get fresh air coming in. Room extractor is into the bathroom (old bathroom extractor vent). So all the heat goes into the house and there is no heat signature visible from outside. I have a FLIR camera and have checked it out myself. Compared to the neighbours the roof is about the same temp and THEIR chimney stack is hotter than mine :D

I have 2 dehumidifiers ready to go for when it gets humid in the house/loft.
Awesome man some set up . Can I ask where you got your flir camera?
 

loftygoals

Well-Known Member
Awesome man some set up . Can I ask where you got your flir camera?
"FLIR one for iPhone 5" can be had for about £110 on ebay. Plug it into an iPhone 5 and you have a FLIR camera! Works very well and can be used to check canopy temps, light temps, locations of pipes in walls etc too.

You can get an android version and a iPhone 6/iPad version but they're about double the price. Beyond that you're getting into serious cash for dedicated FLIR hardware.

I really wanted one for peace of mind. If I hadn't have been able to check my roof temps myself I'd either have stuck triple the insulation on or might not have started the grow at all. There are reports of a guy with a FLIR camera mounted on a drone looking for grows to rob in my area and the police helicopter also flies over my house every day. It's well documented to have a FLIR camera and looks for grows in between other activities. So I'm very paranoid when it comes to heat sigs!

Edit: here's a link to the story about the grow thief in my area http://gizmodo.com/clever-crook-uses-a-drone-to-find-weed-so-he-can-steal-1564697853
 
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loftygoals

Well-Known Member
Arrrrggghhh I have brown algae. Realised on Monday night that one of the Viper Cookes and one of the Pineapple Express looked stunted compared to the rest. Checked out their roots and there was a small brown patch on the Pineapple Express. Because the containers are black it was difficult to see much especially with all the air bubbles. So I switched off the air pump and there was some brown algae on the inside of the rubber grommets which was slimey to touch :(

So I did some reading. This is definitely not pythium as the water is well oxygenated (around 140L/min of air in only 80L of nutrient solution) and is chilled (max 20.2C min 15.5C average 17-18C). Brown algae apparently loves this sort of environment too :(

So on Monday I changed the nutes and made up a Hypochlorite solution which was applied it at 1ppm. On Tuesday I added another 1ppm. In the meantime I ordered a UV filter and had an Ozone generator waiting in the wings anyway.

So this morning I did some cleaning! Dumped the nutes and washed the whole system through with peroxide solution. Scrubbed all the system through with a brush and flushed it with 120L of RO water. My previous reservoir was a black rectangular tote from Ikea... I realised it was very slightly opaque and a light leak might have caused my problem... so I had to unplumb it and swapped it to a 20L black bucket. Redrilled the holes for the RDWC, chiller, fill and drain ports. Attached my new UV filter. Put the Ozone generator in there too.

Have filled it up with fresh 550ppm nute solution and 2ppm chlorine (hypochlorite again).

The stunted plants already seemed to be making a recovery with just the hypochlorite doses this week so hopefully adding the ozone and uv will keep the algae at bay especially as I've swapped the res too... fingers crossed!
 

Bubblegum31

Well-Known Member
Today has been quite productive. Had a day off work :D

I've sealed off the loft completely now so wanted to check for heat leaks with my new FLIR camera. Put a 2000W fan heater up there over night and in the morning it was 34 degrees in the loft. -3 outside this morning... There was frost on the outside of the roof and the average roof surface temp was around 1.5C. Exactly the same as the neighbours :D There were no hot spots and the windows from both houses were around 5-7C (so were loosing a lot more heat than the roof). So we have successful heat stealth :) (can't show pics of the house for obvious reasons)

Also built the veg room walls and have the floor ready for the pond liner to go in. Just waiting for some double sided tape to arrive and I'll be putting the liner down... hopefully this weekend.

On track to get the seeds going by the end of the week *fingers crossed*.
I thought that flir cant detect windowes temprature, is that is not correct?!
 

Bubblegum31

Well-Known Member
24 hours in paper towels... so far a couple of seeds look to be swelling/cracking but no tap roots showing yet.

Temp maintained at 22.5-23.7C (72.5-74.6F). Tent humidity at 60% with paper towels nice and damp... maybe something tomorrow? Patience!
Raise seeslings temprature to 25 c

They will germinate in no time

All the best

Looking great

Subd
 

Bubblegum31

Well-Known Member
Bit of an update...

Seedlings seemed to be doing ok but not perfect. I noticed some dark spots on the 1st true leaves on the Blueberry seedling a couple of days ago. Then yesterday evening I noticed the roots all had a very light brown colouring :( They're still in the clone king and I hadn't realised how important water temp would be at this stage! It was at 28C and it seems I have some root rot starting :(

I had spent the day setting up my water chiller loop in the RDWC reservoir anyway so I fired it up for 20 mins and it brought the water temps down to 17C. Then I thought screw it.. changed the water and gave the clone king bucket + pump a wash in hot bleach. Then reloaded fresh water (again RO ph 5.8 200ppm) and put the seedlings back. The old water smelt like the seeds that rotted away a while back in tap water :( I'm thinking I probably have pythium in my tap water which is what killed all those seeds at the start :(

So it looks like I'll need a chiller to keep the water cool in the cloner too. I've ordered a 60W Peltier, heatsink and 120W power supply which I'm planning to make into a DIY water chiller and attach to the side of the clone king. I can power it with one of the thermostatically controlled plugs I bought a while back to keep the water at a constant temp. Fingers crossed... Until then it looks like I'll be cooling the water manually once a day :(

I've also hung and wired up/ducted my carbon filters and fans today. I'll take some pics over the next couple of days... the second tent should be going up tomorrow too. Then I'll have everything "grow" related out of the main house :D
Not trying to put you down..

Hydro is very hard for a first time grower..

I started in coco, while everybody sayed start in soil, I didnt liesten.

Till my second run I was learning alot and getten better by time.

Still coco is hard for me to switch to hydro :)

What I wanna say is that you are still very early in your grow.

Just get two bags of dirt or even coco briks that expands in water if you dont wanna go up and down your home with 50L bags, and release ur head from this headache...

Any way you are doing great alot in here will be watching your grow, great setup.

All the best

Bubble
 

Fast dog

Well-Known Member
Arrrrggghhh I have brown algae. Realised on Monday night that one of the Viper Cookes and one of the Pineapple Express looked stunted compared to the rest. Checked out their roots and there was a small brown patch on the Pineapple Express. Because the containers are black it was difficult to see much especially with all the air bubbles. So I switched off the air pump and there was some brown algae on the inside of the rubber grommets which was slimey to touch :(

So I did some reading. This is definitely not pythium as the water is well oxygenated (around 140L/min of air in only 80L of nutrient solution) and is chilled (max 20.2C min 15.5C average 17-18C). Brown algae apparently loves this sort of environment too :(

So on Monday I changed the nutes and made up a Hypochlorite solution which was applied it at 1ppm. On Tuesday I added another 1ppm. In the meantime I ordered a UV filter and had an Ozone generator waiting in the wings anyway.

So this morning I did some cleaning! Dumped the nutes and washed the whole system through with peroxide solution. Scrubbed all the system through with a brush and flushed it with 120L of RO water. My previous reservoir was a black rectangular tote from Ikea... I realised it was very slightly opaque and a light leak might have caused my problem... so I had to unplumb it and swapped it to a 20L black bucket. Redrilled the holes for the RDWC, chiller, fill and drain ports. Attached my new UV filter. Put the Ozone generator in there too.

Have filled it up with fresh 550ppm nute solution and 2ppm chlorine (hypochlorite again).

The stunted plants already seemed to be making a recovery with just the hypochlorite doses this week so hopefully adding the ozone and uv will keep the algae at bay especially as I've swapped the res too... fingers crossed!
My man you are very well informed and prepared, your set up is fire !!! You must of waxed plenty of dosh on this project its mind bending I don't think I've ever seen someone go about their first grow as good as you have are you sure you havnt done this before lol and your very lucky to have a space like that available I will be watching your thread closely mate exciting stuff congrats ;)
 

Bubblegum31

Well-Known Member
Arrrrggghhh I have brown algae. Realised on Monday night that one of the Viper Cookes and one of the Pineapple Express looked stunted compared to the rest. Checked out their roots and there was a small brown patch on the Pineapple Express. Because the containers are black it was difficult to see much especially with all the air bubbles. So I switched off the air pump and there was some brown algae on the inside of the rubber grommets which was slimey to touch :(

So I did some reading. This is definitely not pythium as the water is well oxygenated (around 140L/min of air in only 80L of nutrient solution) and is chilled (max 20.2C min 15.5C average 17-18C). Brown algae apparently loves this sort of environment too :(

So on Monday I changed the nutes and made up a Hypochlorite solution which was applied it at 1ppm. On Tuesday I added another 1ppm. In the meantime I ordered a UV filter and had an Ozone generator waiting in the wings anyway.

So this morning I did some cleaning! Dumped the nutes and washed the whole system through with peroxide solution. Scrubbed all the system through with a brush and flushed it with 120L of RO water. My previous reservoir was a black rectangular tote from Ikea... I realised it was very slightly opaque and a light leak might have caused my problem... so I had to unplumb it and swapped it to a 20L black bucket. Redrilled the holes for the RDWC, chiller, fill and drain ports. Attached my new UV filter. Put the Ozone generator in there too.

Have filled it up with fresh 550ppm nute solution and 2ppm chlorine (hypochlorite again).

The stunted plants already seemed to be making a recovery with just the hypochlorite doses this week so hopefully adding the ozone and uv will keep the algae at bay especially as I've swapped the res too... fingers crossed!

Use hydro guard or dutch master zone
 

loftygoals

Well-Known Member
I thought that flir cant detect windowes temprature, is that is not correct?!
FLIR can definitely detect window temps. It can't see temps through windows but it picks up the window surface temp.

I've read everything possible on root rot and slime. Every mega thread on every forum on teas, sterilisers etc. I've even read everything I could find on fish forums. I've checked out every single product on the market and your suggestions are good ones. My environment is already pretty good (chilled water at 16-18C, 26C max air temps directly under lights) and I changed my res to a light proof bucket and lid so I'm hoping I can beat this quickly.

I'm going with the sterile approach first... Already taken apart the system and scrubbed with peroxide. Dutch Masters Zone is just a chlorine based steriliser. I'm using hypochlorite solution (DIY Clear Rez/Pool Shock) at 2ppm (high dose) so a very similar approach. Additionally I've hooked up an 18w inline UV filter plus an Ozone generator running at 250mg/h for 1 hour on and 4 hours off (I'm waiting on an ORP meter to get the Ozone levels dialed in perfectly). So we have... Peroxide scrub, Hypochlorite 2ppm , UV, Ozone... That should kill everything! But I'm creating a couple of new problems for myself because steriliser levels need to be perfect to avoid also killing plants and not causing an issue with nutrients. Anyway I'm aware of the potential problems and hopefully how to avoid them.

If that fails (would be very surprised) then hydro guard is another good suggestion. It is a beneficial bacteria product. The main alternative to sterilisation would be introducing bennies but I would probably be brewing some tea instead of using an off the shelf product. I have EWC, Great White, ZHO and molasses waiting in the wings. If sterilisation fails or I run into problems as a side effect then I'll try the tea route instead.

I'm not going to be switching to Coco before I have tried everything possible. Other people have beaten algae so I can too!

If I really have tried everything and have no luck THEN I might consider switching to another medium but it's not going to be a fleeting decision.
 
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