Intake/lightleak question

[busybee]

:wtf:hi everyone,i've built a growroom in the back of my shed,i have a 6"fan for extraction and 2 x 1.2m lenghts of 4"pipe that i want to use for air intake(pulling air from rest of shed).my Q is...if its daylight outside and my light is off,how do i stop light leeking down the pipes and messing things up!!please help,i need to know before i cut 4"holes i dont need,thanx!:jointsmile:

busybee Reviewed by busybee on 01-21-2010. Intake/lightleak question :wtf:hi everyone,i've built a growroom in the back of my shed,i have a 6"fan for extraction and 2 x 1.2m lenghts of 4"pipe that i want to use for air intake(pulling air from rest of shed).my Q is...if its daylight outside and my light is off,how do i stop light leeking down the pipes and messing things up!!please help,i need to know before i cut 4"holes i dont need,thanx!:jointsmile: Rating: 5

[genuine]

I dug a pretty big hole, say 20 x20 inches by four ft deep. And put my 6 inch flex intake in that. Built a wooden box structure over top, that I then camoflauged by making a wood holding shelf along outside of the shed.

Temperature control has been a challenge in my shed/grow. I used 2 inch thick, foam boards to increase insulation about 18 months ago. I wish that I'd put I'd doubled or tripled that.

Initially I had plants/ resevoirs right on concrete slab. Don't do that...lol..

[busybee]

Temperature control has been a challenge in my shed/grow. I used 2 inch thick, foam boards to increase insulation about 18 months ago. I wish that I'd put I'd doubled or tripled that.

Initially I had plants/ resevoirs right on concrete slab. Don't do that...lol..

:thumbsup:thanx,you're worrying me with the temp control,i only have 2 layers of bubble wrap and one 1" polystyrene panels(inside my wooden shed),i only moved my babies in there today.i'm using a small electric heater and put the lights on at 3.30p.m. till 9.30a.m. i hope that helps or i'm doomed!!:jointsmile:

[genuine]

If you have the vertical room, I have my girlz up on milk crates (12 inches up, that have air flow able to vent below) and so then the heater blows below...

There is a tool designed to heat concrete while drying...that I want to look into ... like a large heating pad. That's also a thought

[WashougalWonder]

Okay, unless it is direct light, it will not matter.

DO NOT start yelling at me. I can prove my statement.

In Jorge Cervantes Bible on page 174 shows a picture of a Haze plant growing outdoors. During the night a street lamp was able to hit part of the plant. That part of the plant flowered. The part that did not have the direct light, did not flower.

As a further example, I separate my veg and flower rooms with a translucent bifold door. Light leaks galore, but not one leak that allows direct light to the plants.

So, for what that is worth.

[WashougalWonder]

Need to edit that, got the parts that flowered and that which did not mixed up.

The part that got the light from the streetlight did not flower, but the other part did.

Whatever, you got the point.

[jakester]

No, I really didn't get the point at all.

Are you saying that a little indirect light is ok? All my experience would say that you are 100% wrong and are additionally spreading misinformation to potentially ignorant growers. I have had a minute light leak that delayed flowering 3 weeks and also caused hermies where there were none before as well as dramatically lowered yield. Your "proof" is laughable. Until you have flowered 2 of your chambers side by side with a variety of strains, one in low indirect night lighting and one in absolute dark can you even start to say that you have proven anything. Until then, keep your "information" to your stoned self please.

[WashougalWonder]

No, I quoted my resource, and yes, a little indirect light causes no issues is what I am saying. I am not spreading misinformation. I gave my source and explained (as best as possible for a stoner) my point. Obviously unclear again.

I do not see issues with indirect light leaks, only direct light. Sure, perfect darkness is nice, but sometimes.

I have had a light leak for 6 years in my current grow. I have no problem with any of my 9 different genotypes. I get stress from cold more than anything.

Goals are great, sometimes exactness is not necessary to achieve them.

I am not spreading misinformation, I am spreading published information.

[Rusty Trichome]

That is one of the problems with these "grow guides". (most definatelly NOT a Bible) They don't fully explain, and you can't ask questions.

The outdoor grow and street lamp analogy has been around for many years, but has little to do with us indoor growers. The sun delivers...what...a trillion lumens per square foot? (from every angle possible...reflected light) And a streetlamp at 20 feet (or so) might be a 100w per sq.ft. (numbers fudged to approximate true knowledge) That great difference is what...a couple-o-billion:1 ratio of daylight to darkness interference. Would be like a 1000w light user worrying about a candle at 100 yards.

Climb-in, shut the door, and wait a couple of minutes till your eyes adjust. If you see any light...best to fix the problem. You might be able to get away with the stress of an indicator light or small light leak once in a while, but if it's not the only source of stress, problems will likely be a guarantee.

[Rusty Trichome]

^^^ Above post was refering to leaks during the flower cycle. Light leaks will still stress-out a plant in the growth cycle to a lesser extent, but in flower there is an importance to darkness. :thumbsup: