bulk prime - the only way to carbonate -
1. spend $30 on a fermenter to use for bulk priming, and some hose.
put dextrose into priming fermenter. full fermenter should be high enough above priming fermenter to simply turn that tap on, flow through hose down to priming fermenter.
turn tap on. when you've nearly run empty, start watching and ensure trub doesn't escape down to priming fermenter.
priming fermenter will now have consistent amount of priming sugar throughout. job done. and you have clear beer all the way.
bottle from priming fermenter. (take out the trub filter thing from back of tap on priming fermenter - gets in the way of the last bottling pours and there is no trub)
personal dextrose adds for 23L are -
ales, ipa's etc - 130-140gm
stouts, porters - 120 gms,
but if you are going to age stouts, porters etc 100-110 gm
you can fill 330, 375, 450, 500, 750 without calcs cos the priming fermenter will have consistent priming sugar through the brew.