Within the past couple hours, just used about 1.5 gallons. We don't have a washer, only hookups so there is a bit less then those that have one.
A quick note - if you have hookups but no washer, crack the faucet caps and both valves to let the lines drain then close and add your pink stuff. Also, open the outside shower connection too to drain then confirm pink comes out. As far as the @#$% HEPVO drain traps - not sure what the usual cup of pink down the drain accomplishes, but habit is hard to change
