Need help with ventilation ideas

Basically I'm having trouble figuring out how I am going to get clean air into 2 rooms insides one biger room, I have a drawing below, I will have pictures in next couple of days, have some electrical work to finish before I can get rolling.
I have a 696cfm fan with a V split for duct work out of the ceiling of each room, that exhausts into the larger room. I have no windows near by that I can use, I can cut into a wall, but it would only be one, then im not sure how to get air to the other room.
My buddy suggested that I cut small holes into each wall and use hoses attached to aquarium air pumps running non stop sucking in clean sir from outside. Would this be a good idea? or nowhere hear enough air?
Any help would be appreciated, going to be up and running this weekend I hope!!

I could really use some ideas to get some clean air in, nobody? How about the aquarium pump idea?

Using an AQURIUM pump does NOT move enough air.you can install your fan to suck fresh air to your flowering room from outside since you are using 1000 watt there .
Then (if possible ) open a hole between your flower and veg room and close the flowering room door to allow the cool air blow from flower to veg room(cooling 400 watt in veg room is not a problem but 1000 watt needs more attention.

I was thinking the same about aqurium pumps, what if I kicked the dead air outside then get air from the main room(my bedroom) it's got a/c in summer and heated to around 72f in winter. It would be easier to put vents in each rooms wall, would this be fine? I do spend slot of time in my room smokin weed lol.

nordberg said:

I was thinking the same about aqurium pumps, what if I kicked the dead air outside then get air from the main room(my bedroom) it's got a/c in summer and heated to around 72f in winter. It would be easier to put vents in each rooms wall, would this be fine? I do spend slot of time in my room smokin weed lol.

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a 1000 watt hps or MH produce about the same heat like a 1000 watt heater.then do you think u can keep your room cool enough in summers or even winters when a 1000 watt heater is working in your flowering room?blowing 72' air for cooling down?

I dont think so. you may need a 600 watt or even less for flowering unless you bring fresh air to your room.

practically you cant cool down a 1000 watt lamp without fresh cool air except for very cold winters.

...your going to need an in and out vent, so 2 holes. Use one large hole for new air to come in ( bigger the better). You'll not need to push air into any of your rooms. Your new air should be pulled through your veg room, into your bloom room and pushed from a filter there, and out of your exaust...put some holes at the bottom of your bloom room, and holes at the bottom of your veg room. The filter in your bloom room will pull air through your veg, into the bloom room and out (your exaust). Place your filter high in the room and as far as possible from your holes in the bloom room. This will allow better air circulation.

trichlone fiend said:

...your going to need an in and out vent, so 2 holes. Use one large hole for new air to come in ( bigger the better). You'll not need to push air into any of your rooms. Your new air should be pulled through your veg room, into your bloom room and pushed from a filter there, and out of your exaust...put some holes at the bottom of your bloom room, and holes at the bottom of your veg room. The filter in your bloom room will pull air through your veg, into the bloom room and out (your exaust). Place your filter high in the room and as far as possible from your holes in the bloom room. This will allow better air circulation.

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The problem with your plan is that his exhaust fan is in his veg room(written on his picture) so your plan does not seem to work.

In my plan he brings fresh cool air to his flower room then through only outlet that is a hole between veg and flower room is pushed to veg room and then through a Carbon filter its pushed out.
The problem with my plan is smell.If the doors are not completely sealed then he will have odor all over his room and finally the house. but if his rooms can be kept sealed from his bedroom then my plan seems OK.
what do you think?

Cheers
Satica

With venting like you guys are talking about will the smell get out the clean air vent at all? A bit worried about that. Otherwise I was thinking about venting from room to room, outside - flower - veg, but it gets real humid/hot in the summer(near you Satica, London) you guys think this would be a problem when it gets like 95f outside 100+ with humidity. I am working on the doors right now, going to overlap the door(half inch plywood) almost an inch on each side with weather stripping all the way around, not sure how this is going to work yet.
Also I had another idea for clean air, since its hot as balls in summer here, I could cut a hole in the wall(theres a small cubby hole that is about 8" deep x 10" wide, as tall as room)use this with ducting going to a V splitter then ducting to each room, but come summer I can switch the ducting from clean air outside to dead air and use the A/C air from my room for clan air in the summer. Or is that way too much ducting for good air movement?
Thanks for the help guys! I am almost up and running, next couple of days I hope.

Anything??

Nothing?!?

Using your room air to cool down your grow rooms in summer is very difficult and your hydro billl goes up.

Ps: ducting your room with ducts bought from home depot(hanging around to carry the air from hereto there is very cheap and reliable way of ducting since you are not making any serious damage to your rooms.

ps: sealing a door against marijuana plant smell is easier said than done.Act like a bottle of perfume has broken in your grow rooms .if you can keep that smell outof your bedroom then it will work for keeping your plants smell confined to your grow room.for me it took 2 month to seal the house clean from plants smell.