150w HPS Club and Resource Guide......

[Quazi]

I used the larger Lasko blower to hook up to my 150W HPS cool tube. Love it.

Lasko Blower Mod - Specially Modified for Cabinet Cooling Tube Ventilation

-Q

 

[Bulénath]

Aloha Oahu grown,
Howzit goin? Rainy today yah?
I never used that fan before, but for small grows why not try for the Panasonic Whisper Fan?

Interesting tutorial Quazi...
I'm going to read through it now...

Do you have the dBA rating for that fan? Seems like it would be loud like most blowers...
On the other hand, It seems like a good option for my 1200w cabinets...Bascially a fan to blow across the canopy...

 

[OahuGrown]

Hell ya its raining but not as hard as i expected.
I took into consideration the Panasonic whisper fan and the bigger Lasko. Im trying to make it as stealthy as possible.
Bulenath you live in the islands?
Where could i get the panasonic in a store?

or another lasko fan like this.
http://www.laskoproducts.com/fans/model_655302.html

 

[hoosierdaddy]

The larger model Stanley is a standard at Walmart. (same thing as a Lasko)

 

[Quazi]

From looking at the DIY with the Stanley, I can tell you that they are differently designed. The Lasko is designed to intake air from both sides of the blower. There is a divider down the middle of the fan that allows this.

I did not see the divider down the middle of the Stanley. Only a single input (the side where most remove the grate).

Because of this, I can use my Lasko to run the intakes on my veg and the intakes in flower w/out having to worry about one side getting more or less ventilation.

Also because of this: the Lasko is not designed as well to only have difficulties pulling through one side of the fan as it is designed to have two intakes. Because of this, I have heard a report that a person cooling a few 400s having the fan eventually fail because it warped due to having suction on only one side.

The Stanley, with it's one-sided intake, would be better for the type of application where you are only worried about pulling through one half of the blower.

Again, I'm just going from the pics I saw in the Stanley blower thread, so I could be wrong.

-Q

 

[OahuGrown]

Look at this at home depot. would it be a good idea if i were to get this?
http://www.homedepot.com/webapp/wcs...Id=10053&productId=100047556&N=10000003+90401

Cause i went to home depot and walmart last night and didnt find any stanley or lasko blowers. What do you ask for when looking for it in a store?

Also is it better to be blowing through the carbon or sucking through the carbon?

 

[hoosierdaddy]

It is always best to have your fan at the exhaust and suck through the filter.
At Walmart, the Stanleys are kept on the shelves with their table fan selections.
A through-wall fan, like in your link, would be good to pul air from your veg chamber into the flower, but you will still need an exhaust fan/blower set-up.

 

[OahuGrown]

But wouldnt it cause less strain on the fan or blower if it blew through it? and not have that pressure from the carbon blocking the fan.

 

[hoosierdaddy]

No.

Try it yourself. Put the fan at the beginning of a duct run and feel the force of the air. Then put it at the end and feel the force of the air. You will then seen real world.

Not only is the power quite a bit different, the area that the air goes through before getting to the carbon is far less if you are pushing air to the inside.
You can get air scubbed better pulling.

 

[OahuGrown]

This is my cabinet to be.
Give me suggestions.
The fan is 80 cfm.
150 watt hps

 

[exploziv]

If you make it like in the drawings you will have light leakings on the intake and flower room exhaust... you must put some 90 degrees turned ducts painted inside in black or something to be lightproof.

 

[Pipedream]

When building an NGB-type cabinet, this is my favorite AirFlow design...

 

[Bulénath]

But wouldnt it cause less strain on the fan or blower if it blew through it? and not have that pressure from the carbon blocking the fan.

Shi-sei Hawai'i born...
We'll leave it at that!


As for pulling or pushing...It is a simple matter of the laws of physics.

When you displace air, it automatically has to be replaced. I.e. Negative pressure.

When you use positve pressure to push through carbon, you are, in a way, working against the laws of nature.

It is much easier to use the laws of nature to your advantage, than work agaisnt them....

As for shipping to Hawaii, I found the cheapest prices of Ebay.
R.e. williams online has okay deals...

 

[OahuGrown]

thanks For the replies

exploziv
Well I tried to show it how it would look but this is what i was planning on using to light proof the intakes.
http://www.bhphotovideo.com/c/product/43104-REG/Doran_PRDV99_DV_99_8x8_Light_Tight.html

Pipedream thanks for input
That's a great idea for the airflow but how big would i need to make that middle flow area to have a good supply of fresh air?

Bluenath
Mahalo nui loa my braddah
What kind of hps you get? Is it a 150 and if so what kind? and from where.
Everything seems so reasonably priced on the internet but when you live in hawaii shipping is costing me more then the actual product itself.

Someone just gave me a 80 cfm fan from radio shack which is pretty strong. I think i might use it to ventilate my flowering area which is only 5.625 cubic feet and saying that my fan might slow down to 60 cfm from the carbon filter it will cycle all the air in my room 10 times in 1 minute.

 

[growDaddy]

chopped my crop yesterday. not too many pics cause too many hits.
harvested at day 60.
this is my harvest box. it sits inside a large home depot paper leaf bag. I have a metal plate attached to the inside top of the box. I use magnets glued to push pins with a rubber band to hold it better. I put the magnet to the metal. So all of these 'buds' are attached to the top of this box. 21 of them.
then 2 pics of the largest bud.

 

[Pipedream]

That's a great idea for the airflow but how big would i need to make that middle flow area to have a good supply of fresh air?

The flow-space or airduct is simply made by inserting a second wall in the veg area, and cutting appropriate openings at the top of one and the bottom of the other. You can use either thin plywood or even laminate to minimize the loss of space.

Since your cabinet is 16 inches deep, if you make the duct just 1.25 inches wide, you'll have 20 sq inches of cross-section or flow area. That's slightly better than a 5 inch circle.

Two added advantages are the elimination of light leaks, and the potential to work with just one fan for airflow thru-put.

May not be the best idea out there, but it's just one more thing to think about and consider.

 

[catman]

Congrats growDaddy Enjoy!

I ordered a Panasonic Whisper FV-08VK1 80 CFM today. $110 Shipped.

As soon as it arrives I am only a trip to home-de-pot away before it it is time to get dirty!

 

[Bulénath]

thanks For the replies

exploziv
Well I tried to show it how it would look but this is what i was planning on using to light proof the intakes.
http://www.bhphotovideo.com/c/product/43104-REG/Doran_PRDV99_DV_99_8x8_Light_Tight.html

Pipedream thanks for input
That's a great idea for the airflow but how big would i need to make that middle flow area to have a good supply of fresh air?

Bluenath
Mahalo nui loa my braddah
What kind of hps you get? Is it a 150 and if so what kind? and from where.
Everything seems so reasonably priced on the internet but when you live in hawaii shipping is costing me more then the actual product itself.

Someone just gave me a 80 cfm fan from radio shack which is pretty strong. I think i might use it to ventilate my flowering area which is only 5.625 cubic feet and saying that my fan might slow down to 60 cfm from the carbon filter it will cycle all the air in my room 10 times in 1 minute.

I got my first HPS with a mogul socket (the larger of the two sockets) from Ebay about three or four years back...I don't think the same model is available any more, and the seller is gone...

My second was bought from HTG supply, is the floralux mini that I remote ballasted. Becasue of the shape of the Florlux mini, I could hook up a PC fan to the reflector, and the ballast aswell.

But for the main exhaust, you really, REALLY want a better fan than a few PC fans, which is relatively weak and can barely hold itself up to the static presure generated by the carbon being there. You can use them for blowing over and venting through the inner components of your cabinet, but for the main exhaust with carbon definately go for a larger, more suited fan, like the 80cfm model Panasonic whisper fan.

I promise you will not be dissapointed, and they will last for years and years if you hook up the super simple carbon tray scrubber that I made a tutorial of, somewhere in the DIY link-o-rama...
You know how to search for it...

Anyway, as for good PC fans available on Oahu, go check out Comp USA ( I think), you know the one across the street Home De Pot in Aiea?
They sell these "Mad Dog" compueter fans (5" square, 4" circle fan Diameter), that are really really quiet at about 24dBA and 60CFM for about $10 each. You will be over paying for a louder fan at Radio Shack!

If you use them to pull on a cool tube or air cooled reflector with relatively higher temperatures found in Hawaii, especially in the summer time (Even if you live far up heights in the Ko'olaus), they will last you about a year or so, running 24/7 (because who wants a timer on thier PC fans). If you use them to just blow air through a ballast or across the room, then they should last a few years or longer, or until they clog up with dust, running 24/7.

Regardless, you will really want a better fan suited for pulling through carbon.

Anyway, Hawai'i has insane humidity sometimes, and anything over 60% humidity in the middle of flowering will cause some smell to leak through. Becasue of this, and the higher temperatures found almost everwhere, I suggest you buy a $200ish window A/C for those really warm nights where your cabinet might reach upways to 85F which is a red flag.

You want to keep your temperatures below 80F (optimally in the 70's for most strains). I shoot for 68-70F as an ambient temp, and my flower cabinets goes up to 77-80F during that time. But at the same time, you want 20-40% humidity for flowering....But I find that even rock hard Indicas will do okay in 50%-55% ambient RH. As long as you have good ventilation.

The window A/C will do two things at once: Lower the temps and humidty to an optimal level, especially for drying and properly curing your weed.

10 air exhanges per minute would be great, but you only need five really. The problem with overkilling smaller grows, unlike commercial op's, is that we are usually growing in our Bedrooms, or growing for stealth reasons, where a louder, overkilled ventialtion would compromise the very reason why we are growing with the 150's. Everyone truley has thier own unique growing situation. I started out as a young high school grad still living with my parents who needed to grow in complete stealth, all while having insomina. So a super queit, powerful fan was my only option.
Had BuffaloGrown from Over Grow not shown me the Panasonic Whisper Fan, I woulden't be writing this today....Perhaps I wouldn't even be alive today (Ganja is my salvation).
I spent about $500 on all sorts of ventialtion experiments all to find what works for me. So really, the Panasonic Whisperline fans present a great option for our style of growing.
Look for the the models with 0.3-0.4 sones or less, follow the tutorial.

Since you are growing in Hawaii I will share with you a very easy method of growing in our beloved country....

If you go to longs drugs store you will find Black Golds Worm Castings.
At longs or Wal Mart you will also find Perlite and Black Golds Organic potting mix. You MUST get the organic one in the orange labled bag, becasue the at the heart of organics is the bacteria.

Then you can go to that really cool chick who works down at Kahala Hydro. She might make you Hula Hoop for a bottle of it, but if you make the hoop circle around your waist 10 times she might give the fetilizer to you for free.

Pick up some Pure Blend Pro. 1 bottle of Veg, and 1 bottle of Soil Bloom.

(Note: Pure Blend Pro is basically Pure Blend with Liquid Karma).

Also, go to Star Market, the one with a garden section, or go to Ace Hardware where they can custom order it for you, and get some Vermiculite...

Here is the method.

For Babies, clones, seedlings and young vegging plants up to a month old, use 1/3 each:
Perlite, vermiculite and Worm casting.

Water with plain tap water every day, and mist gently.
Then, after two weeks you can start feeding them every other day with Pure Blend Pro Veg, starting with 1/4 seedling strength, and slowly work your way up. Meaning you fert one day, plain water the next, and so on in that exact fassion.
Do NOT feed your seedlings until they are atleast two weeks old. Until then, the Worm Casting provides enough N to last them. On that same note the Perlite is for airation and vermiculite to retain enough moisture for the fragile Rhizomes and root hairs.

For Flowering plants, which you should flower at roughly 3-4 weeks into Veg, use 1/3 each:
Perlite, Wormcastings and Black Golds Orgaic Soil.

Just like the schedule above, water plain water on Modnay, Feed Tuesday, Water plain on Wednesday, feed Thursday, etc. You want to feed the flowering plants Pure Blend Pro Veg formula for the first two weeks. This is so it has enough Nitrogen to support the strech. After two weeks you can start hitting them with the Bloom Soil formula.

This method has always worked perfectly for me, and it is really simple becasue all you need is 4 ingrediants and 2 same brand fertilizers forever.

Edit: I forgot to mention that exact growing technique was taught to me by Lavender Cowboy back on O.G.

 

[OahuGrown]

can you rep people? if you can I will rep you.

thanks bluenath for that insightfull passage. it was really helpful. I saw that hydro place in kahala but never went inside. know of any places where I could buy a 150 watt hps. I planned on doing a sog in some 20 oz bottles so veg time won't need to happen. all of the compusa closed down. where could I find that panasonic whisper fan?

 

[Bulénath]

WHAT!?!?!?!

No fucking way!

Comp USA is gone? I'll admit that I am quite a hermit, I work at home and don't drive....But that makes me really, really sad! What will I do when my computer fans eventually fail!? Guess I will have to start looking for a new source..
Thanks for the heads up!

For the panasonc whisper fan, first try Ebay beause you might find a cheaper deal, and if your really lucky you will find a cheaper deal with USPS priority shipping, which is like 1/4 the cost of UPS or Fedex.
Regardless, take a look at R.E. Williams online. Thier website has a very comprehensive guide to different models and thier specifications. They ofer decent deals aswell. Either way, it is well worth the money. Also the carbon is super easy to change. You just remove the fan and dump the stuff into the trash. No mess no fuss. You can buy the carbon online, or you can go to that Aquarium store, behind Pearl Ridge, next to that shop with all those lifted trucks, you know that road that has Inspiration gallery and Pali Momi hospital... Right after Daves ice cream, if I am not mistaken, going North. Anyway, they sell large bags of carbon, which should last you for about a year or longer. You only need a layer about 1-1.5" at most. I think the bag is $30? I forget already...

As for the HPS, the Floralux Mini is okay, and I like it. It works well and for about $100 it has a decent air-cooled design with aglass sheild, built in aluminum reflector, and you can remote the ballast and hook it up so it has it's own cooling fan, because all the ballasts components are attached to he walls, and both the bottom and the lid is removeable, so you can blow air directly through the ballast's components.

The FloraLux Mini has a medium based socket, which is perfect for my really tiny 150 cabinet, but for my larger 150 HPS cabinet that grows about 50-60% more weed, I'd rather have a Mogul Socket any day...
Big difference in size and probably better light distribution therefor...I dunno, just a thought!
Anyway, I got my Floralux mini from HTG Supply online. It was a decent deal becasue of the craftsman-ship that went into it.

You can Rep anyone by clicking the scale under a members avatar.




























Oh and now that I look at it again, I think the fan's circular diameter is roughly 5" aswell, not 4". For use with the reflector, I use some weather stripping, and make a 5" square around the reflector's 4" vent-hole at the top then I just rest the fan on top of the weather stripping.