been homebrewing for about 18 months now and thought i was progressing well.
always had a carbonation/lack of foam issue but didn't worry too much as the beer was ok.
turns out i missed a very basic concept - i never measured my fermenting buckets, just assumed they were 23 litres and when i filled them to the middle ring on the outside i had about 19 litres(5gallons)
turns out my pails are larger and i have been fermenting 23 litres,about 20% more than i thought.
therefore i have been using 20% less ingredients and priming sugar than i should have.
in a way it was good since i also forgot to reduce the bittering hops when i went to full boil for all grain.
i am glad brewing is so forgiving of screw ups.
hopefully my next batches will be better now(end of rant)