thamn bro you buy a system and have no clue how it goes? Firstly do it outside but if you have to so it inside be sure to wear an antistatic bracelet and have a fan lightly blowing air to the system, cause you CAN blow yourself into a new universe with enough butane.
First look at your system the volumes of the chambers seem out of whack for the volume of the column that you have. Calculate the volume of your spool multiply it by 0.7 or 0.8 and the result of that operation multiply it by 3, thats the volume of gas that you need to be able to push through the material for an efficient extraction.
The gas gets transported from one chamber to the other ith the help of thermodynamics. Gas seeks low pressure and cold and will evade heat and high pressure. if youre extracting over -20C your results wont be as good, get everything as cold as possible and your extracts will be clean provided the starting material is excellent.
Good luck!
Ps.: In contrary to popular belief wax is total bullshit, so once extract is done dont scramble, whip, stir whater kids are calling agitation nowadays. Put into a thin film in the oven between 45/50C flip when irregularly sized bubbles stop and quit the purge when the other side has done the same. do an extract with ridiculously good nugs and youll have an award winning extract.