Negative pressure sucking in walls of tent

Hi guys any solutions to this issue my fan is on lowest setting and sucking in the walls of my tent really badly limiting space

Cookmesomeeggsbch said:

Hi guys any solutions to this issue my fan is on lowest setting and sucking in the walls of my tent really badly limiting space

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some negative pressure is good, but of younfeel it's excessive and the fan is already at its lowest setting the only thing you can do is increase airflow on the input side. you can do this by increasing the size of the opening letting air in to the tent, or you use a small inline fan on the input side.

Pvc and some 3 way connectors in the middle to keep the sides up

I would agree with a balanced intake / exhaust for optimal negative pressure, but what about sealed rooms? Is the in / out the same flow rate with a mini split unit? If not equal, is it positive or negative pressure? Does it vary from brand to brand? It's something I've never considered, but recently I bought a unit that I haven't hooked up yet.

I put some some extra movable bars around mine.

lusidghost said:

I would agree with a balanced intake / exhaust for optimal negative pressure, but what about sealed rooms? Is the in / out the same flow rate with a mini split unit? If not equal, is it positive or negative pressure? Does it vary from brand to brand? It's something I've never considered, but recently I bought a unit that I haven't hooked up yet.

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A sealed room has no air coming in or out (some do periodically change the air) a mini split recirculates the air in the room. So doesn't affect pressure

sunsetdaydreamer said:

A sealed room has no air coming in or out (some do periodically change the air) a mini split recirculates the air in the room. So doesn't affect pressure

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Are you talking a terrarium? I know that it recirculates the air. I assume there are two fans: one blowing and one sucking. My question is are the fans set to the same speed, as to cause neutral or very little pressure? Or are they different speeds to create a negative or positive pressure within the room? You obviously don’t want positive pressure in a grow tent. I imagine that it’s neutral, which would be ideal since I would no longer have to exhaust through a carbon scrubber.

I'm not really sure what you're asking. In a sealed room you have co2 added and no fan sucking in or blowing air. That's why it's a sealed room.

Back to the grow tent yes it should always be slightly negative pressure