Ways to narrow the take-off port

[Iulistoi]

Hi, I want to reduce the diameter of the take-off port in my CCVM column. Now, the T is equal and the default RR is 1:1. If I would reduce the cross sectional area of the take-off port to 1/4 of the column, theoreticaly, I would have a 4:1 minimum RR.

I don't want to change the T because I soldered it. Another reason is I don't find a T with smaller takeoff. My thought was to solder a ring within the hole to narrow the path, or something like a funel or by creating some turbulences through the PC.

Once I used a corrugated SS hose to the PC and the minimum RR was 3:1 due to turbulences, prety good for 95%. But then I had SS scrubber packing. Now I use SPP.

I hate very fine adjusting the heigh of the RC and I never use 1:1 RR. Tails are very few and nasty and it's not worth it to waste time, energy and water to fill the column with stinky vapours.