Venting through the sewers

BuddaRoom

Active Member
This is 2 much lulz , Im off to blaze some bubble gum while you fools argue over which one has the smallest E-dick !!
 

deflator

Active Member
JESUS CHRIST PEOPLE, how does a simple question turn into a Political AND RACIAL battle of words?
It's the internet, that's how. This thread has been thoroughly derailed.

I'm moving, but I am going to consult a plumber as soon as I find one I can trust and try this out in my new place sometime in the future. I will make a new thread with results.
 

cowboylogic

Well-Known Member
I'm sure this has been tried, it's just too good of an idea.

Basement growers, why not hook a fan up to a stack cleanout or a floor drain to vent all that smelly air into the sewers?

You would need a way to prevent backflow of course, something like a p trap, but other than that it seems like a good idea. It would be hard to overpower the scent of sewage.

Thoughts? Drawbacks?
Hard on fans. Most homes only have 4 inch pipes max. The diameter and lenght alone will creates alot of pressure. It works, but in most cases you need much bigger fans to move the amout of air needed. Maybe use it as a last resort at best.
 

cowboylogic

Well-Known Member
Enough with the alternative suggestions. I am well aware of them, ozone is harmful indoors and I have a bigass carbon filter that is not quite enough. At least read the OPs posts before adding crap to the thread please it's only 3 pages. This is not about filters...
Carbon filter, Ozone generator, Ona Gel. CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER CARBON FILTER
 

BUCKBUCK

Member
careful you don't make your basement to negative. It could pull fumes from your water heater and or your furnace that normally are vented outside.
 

Ronjohn7779

Well-Known Member
I've thought of this too. However what is sewage? I'm sure the definition varies from city to city, state to state. Who knows what nasty chemicals could be in there.

Also if something were to happen to your sewer line you could have a basement full of shit...no fun.
 

shiftgrow

Member
I have used this technique for years it works great but has limitations. First of all I'm in Canada and all houses use 4" even for the vent to roof pipe.
(newer homes, the older ones use 2")
The limitation is trying to cool a room with air movement only will only work with a maximum of 2000 Ws IF the fresh air intake can pick up cool air. That means the shady side of the house. Most of the vented air will go up and through the roof vents but even then you can still only smell shit if you stick your nose in the vent.
These days I mostly build closed rooms with air cooled lights and C02. I will still make a vent to sewer and use a small fan just enough to keep a slight negative pressure in the room to avoid smell leakage. My intake runs through a sound isolation box made of drywall and green glue. I use three furnace filters stacked with one at least a carbon filter in this box so my intake air is cleaned before entering the room.
 

skunkfish1

Active Member
How would this work for a small personal grow 2-3 plants max
a 400w hps in a 2x4x5 tent
exhaust through a carbon filter located in tent then run exhaust into 4 " sewer and use a backdraft preventer
would there be any oder problems for the neighbors or the sewer inspectors to smell ?
 

doser

Well-Known Member
Wow...some people have no idea what they're talking about. There's no trap after the house, and if you tie it in with a wye between the point at which it exits the basement and any vents, it won't blow out the vent stacks...it also won't bubble out your toilets or sinks. If the city smells mj in the sewer, then you live in a city where everyone's shit must smell like weed. Another thing....duct fans aren't worth a shit at static pressure...get a centrifugal inline exhaust fan

Dude, you are so right on. Don't let a little lack of knowlege on the subject prevent you from expressing an opinion. LOL I am not much of a plumber but I am a licensed one and I know a couple things. First one being that anyone sticking his head in a sewer pipe is not slowly drawing air air across his taste buds to more readily capture the essence of the lady two doors up that just took a potty break while watching Opra, Really dude I promise you this, you ain't going to be able to distinguish the smell of dank skunk grow once it has mixed with sewer fumes. Trust me on this one. I am really really sure of this. Plunbing traps prevent sewer gas from entering houses. PERIOD
They do not prevent gasses from flowing iether to your house or away from your house.
So what I am saying imho, is go for it!!!! Heard the arguments against it. They're bullshit. every one. not a logical argument in the bunch
 

doser

Well-Known Member
you are talking crap pal some houses do have a trap after the 4" plastic (modern type) (not the 6" cast iron (older type)) pipe leaves the house, i have installed them, there is a manhole inspection and drain clearing channel after the trap and then the pipe changes to a 6 inch, go to a drain centre and ask for a 110mm drainage trap, i bet they pop one on the counter, these traps are used when there is a sewage pumping station to pump sewage up a hill from your housing area, if you live at the bottom of a hill on the outskirts of town then the sewage gets pumped to the top of the hill before gravity takes over and it heads for the sewage works and these pumps cannot pump the gasses from the sewer, and any vent pipe in the house is to control the pressure in the house drainage pipes, if you empty your bath into a closed pipe without a vent the water would not run away without an air intake, it would just gurgle, to vent smells into a sewer is possibler but not recommended. people do it i know they do. but its not the long term answer when you can buy 10 kilos of carbon refill for 60 gbp every 6 months, and if i opened an inspection manhole and the sewer was reeking of grass, and i was an honest workman, then you know what would happen next. if it was me i would say nothing but thats me.
Why do ya think they call it
"dope"
 

mijola3

Active Member
you lot look alright but you smell like shite, just like your bathrooms, and they are worse than the sewers with all the crap you fat greasy slobs eat. you lot need a stack for your guts never mind a sewer. if you want a fight go join your buddies that are gettin suicide bombs up theyre arses and blown apart by kids in afghanistan, then you can smoke all the shit you want. by the time you lot win this war there will be gravestones all over the fuckin place in every state, city and town. ruled by the blacks. go get em.

you know what i looked and uh, you seem like an expert.
an expert racist, ignorant, self absorbed, condescending prick.

no offence....
but i also looked and uh,
i didnt see any pics of any MJ plants? actually, i didn't see any useful posts at all....considering you have almost 400 of them thats pretty fuckin pathetic,
you really need to stop posting so much, especially when you're simply being a dickhead and not providing any useful information or knowledge....

and to the OP, this DEFINATLY will work. i hav seen it done....in fact there was a good thread on here by a user "Pullinweeds" and he vented into his sewer system, he had good pictures to show how he did it, and it was only a small setup like 2x 150 watt HPS or something, but it was tight,.
anyways goodluck dude.
 
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