Providing it`s not a first clean with a mono brush and a slightly higher flow rate i rinse on the glass,like i say as long as it`s not a first clean.The vikan brush that you`ve been using retains the dirt and is hopeless for rinsing on the glass,for rinsing on with a mono brush from time to time run your fingers through the bristles to get rid of cobwebs etc.Get an old comb and comb through the bristles every now and again,this enables you to clean out right down to the stock.