When you do the hoses leave them connected to the washer. Set it for cold and hold the hose a few feet above the washer. Turn on a cycle and pour the antifreeze in the hose once you see it enter the unit do the same thing with hot water. For the pump it will be to pour 1/2 gallon in and start a drain cycle. Let it run for a minute and then pour in the other half and pump out again for 30 seconds and you should be good. Watch it closely when starting it again for the first few loads.
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Thank you... Stay warm.