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Polywater has introduced a new package option for SPW Solar Panel Wash, catalog #SPW-35HS. The unique feature of the SPW-35HS is its integral hose attachment sprayer. This special dispensing device attaches directly to a standard garden hose for inline spraying of the solar panels. The spray head is adjustable from a flat spray to a targeted stream that delivers liquid up to 20 feet. A handy selector switch atop the unit allows for two spray settings, one for water only, and the other for applying a diluted mixture of water and concentrated SPW solution. The SPW-35HS can be refilled from larger bulk containers and reused for greater economy. The water-only setting is useful for preliminary rinsing of the array to remove the bulk of loose dirt and debris. A typical piece of sand has 57 cutting edges that can harm glass. Rinsing helps avoid scratching the panels when later using brushes that could grind this grit into the glass surface. The dilute mixture setting produces a 25-1 ratio (25 parts water to 1 part SPW). This dilution ratio is suitable for most cleaning situations with a light to moderate accumulation of dirt. For heavily soiled panels it's best to first use a lower dilution ratio of 12-15% (12 to 15 parts water to 1 part SPW), which is more easily accomplished with SPW's alternate quart, gallon, or 5-gallon pail packaging (SPW-35LF, SPW-128, SPW-640). Coming up soon we'll share our recommended instructions for cleaning solar panels with SPW Solar Panel Wash based on real world experiences. |
