That depends on what the temperature will be while it’s sitting for a week. Not much of a concern in the summer but could be problematic in the winter. If you plan on using the rig in the winter you may want to invest in a small air compressor to blow out the water system rather than going through a lot of antifreeze, although you’ll still need some for P-traps and such. There are some good videos on YouTube showing how to winterize with air.
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