GoSpout stores two gallons in a food-grade plastic tank and uses a pump cap to supply up to 30 psi through an eight-foot hose and five-pattern nozzle. It needs no battery, bucket, or roof installation, and eTrailer explicitly shows it cleaning a muddy dog. That convenience is offset by a 21-pound full weight, a high price for two gallons, and a small independent review sample that includes complaints about modest pressure and lightweight fittings.
