rip slower, or add extra filtration such as an ash catcher or activated carbon filter. the diffuser beads may work too (ive never tried) also i believe it may just be the sugar, but using sweet tea as bong water is just amazing!! also clean water helps too i change water atleast once a day. ooooooo and another idea is to get a honey comb bowl, those are sick as fick. has 5-8 hols n botom of bowl not one tiny one.
damn and if your bowl is black with res, a good cleaning helps. cuz if its hella dirty n ur burning good herb, the res will gett hot n smoke a bit adding to the heat and harshness