No way I'd add that much (and we have an old school low efficiency top loader), but I'll probably just keep on using the all free and clear or whatever we started using when our daughter was born. I'd just been hoping to find an easier alternative for washing my merino sweaters than doing it by hand because I'm lazy, but hate the pilling that comes from over machine washing them (had to pick up a bunch of new ones this fall/winter as I'm now teaching and sweater over dress shirt is professional enough without having to pull out one of the sportcoats and tie a tie every day).