Live Stoner Chat General question about filtration

[DJ High]

I have a small grow tent (2x4x5 ft). I am using a 4" 200cfm fan by Vivosun and the matching 4" filter. My question is; can I use my 4" inline fan and a 6" filter (using a 4" to 6" coupling) in order to have a longer filter life? Will doing this not also reduce the CFM loss I would get from using a 4" filter with a smaller surface area?

Thanks in advance for your input

 

[AutoWonders]

As an alternative, I suggest that you consider buying a Variac controller such as this one at Amazon...Amazon product ASIN B006NGI8VSIt's highly incremental in control. I have two units. Much better than the 3 setting only controllers. Saves more of the filter.

 

[Arthur]

I don't know that it matters to the filtration process, but a larger filter will have a lower suction per square inch of filter material. Same force applied over a larger area.. but I do that when I turn the dial down too...

I would agree with @AutoWonders in that if you want to run a larger filter, move to a 6 inch fan with a speed controller.

Overall your limited by the cfm that the 4 inch will flow. It shouldn't flow any more or less thru the tube with either filter...
I'd rather be overpowered and dial down, than have a stretch that a marginally sized unit had to struggle.

 

[DTOM420]

OP-
I’d suggest calling one of the fan/filter companies tomorrow and asking them. I like Hyper Fan (although it irks me that they’re owned by the Hawthorne Group now) and their tech support has been amazing. Since it’s a general question I don’t think it really matters which company you ask. However, there might be some wisdom in asking the company you’re planning to buy from so they can address your question specifically to the products you’re considering.

I don't know that it matters to the filtration process, but a larger filter will have a lower suction per square inch of filter material. Same force applied over a larger area.. but I do that when I turn the dial down too...

I would agree with @AutoWonders in that if you want to run a larger filter, move to a 6 inch fan with a speed controller.

Overall your limited by the cfm that the 4 inch will flow. It shouldn't flow any more or less thru the tube with either filter...
I'd rather be overpowered and dial down, than have a stretch that a marginally sized unit had to struggle.

This is what I’ve been doing. My 5x5 has an 8” fan/filter and the 4x4 I’m getting ready to put in is getting a 6” fan/filter. Only my 2x4 that I use for drying has a 4x4. I was told that running a bigger setup on 30%-50% saves both filter and fan.