Filter&Fan setup help!!

I've got 2 4x4 flowering tents. Currently only one has odor cOntrol and the fan/filter could easily handle both tents.

If I set up both tents to run to a y splitter, inline fan, then push through the filter I can scrub both.
However since the scrubber would be exhausting back into my garage, wouldn't this cause heat problems?
Is it possible to do ducting from both tents>y junction>inline fan>20' ducting to attic>finally to filter.
Or do you think it would eliminate the usefulness of the filter and cause smell leaks? All constructive input highly appreciated! !

I think you want to suck thru a filter, I know that is not the answer you were looking for

Let's presume you can push through the filter. Thanks for the response though!

Yeah dude it's pretty simple really. What you want to do is poop in your carbon scrubber. That way if it's not set up right it won't matter becuz the poop will cover the smell.

What size fans and lights? What's the ambient temperature in the garage in summer? You can push through filters with no issues. Take the pre filter and stick it inside the filter and clean every 3 months. I run filter on both ends. I pull through one and push through other. Ive done this for almost 10 years and nothing works better.