I've been busy lately and have allowed my pipes to develop some cake. I've also noticed that my bowls don't last as long as they used to.
During the weekend I finally made an effort and reamed my pipes and suddenly a bowl of FVF lasts 2,5 hours again.
So I did some math.
If the chamber has a diameter of 20 mm and it grows 2 mm of cake, the volume decreases by 1/3.
If the chamber is 18 mm diameter and grows 2 mm of cake, volume decreases almost by half.
During the weekend I finally made an effort and reamed my pipes and suddenly a bowl of FVF lasts 2,5 hours again.
So I did some math.
If the chamber has a diameter of 20 mm and it grows 2 mm of cake, the volume decreases by 1/3.
If the chamber is 18 mm diameter and grows 2 mm of cake, volume decreases almost by half.