Well....yeah, but no, but yeah, but.....he'll only need a bit, it saves him mixing it up, and - speaking as a card-carrying, tightwad Yorkie - it's only a tenner, eh ? And his swindler will stock it, so it's easy innit ?
If he has any left over it whips off those brown waterline marks in no time, so it wouldn't go to waste.
(We're not ALL chemists ! /forums/images/graemlins/wink.gif )