Stealth 11 GPM Gas-Powered Commercial Soft Wash Business Pack
The Stealth 11 GPM Soft Wash Business Pack is a turn-key commercial powerhouse designed for contractors requiring maximum chemical volume and vertical reach. Part of the high-output Soft Flow Series, this professional-grade skid is centered around the gear-driven Comet P40 diaphragm pump, which delivers a massive 11 GPM flow rate @ 300 PSI . By utilizing a gas-powered Honda GX200 platform, this system provides the pressure and volume necessary to treat high roof peaks and multi-story siding from the ground, significantly increasing production speed compared to electric alternatives.
The system is managed by the high-flow 1" Stealth Proportioner, specifically engineered to prevent pump starvation. This 1-inch manifold allows the Comet P40 to pull unrestricted fluid volume through dual 1" metering valves for water and bleach (SH), along with a 1/2" valve for surfactants. This architecture enables the operator to switch chemical percentages on the fly, moving from aggressive roof treatments to lean house washes without manual batch mixing or wasted chemical.
To maintain this high-volume flow, the pack includes an 18" full-frame aluminum hose reel equipped with a 3/4" stainless steel manifold and 1/2" swivel. This reel houses 200 feet of included 5/8" ID Stealth Soft Wash hose. The 5/8" diameter is critical for gas-powered soft washing, as it offers significantly lower friction loss than standard 1/2" hoses, ensuring the full 11 GPM reaches the added WaterBoss 750 applicator gun. The entire system utilizes stainless steel and poly components to provide a zero-brass, corrosion-resistant flow path for aggressive soft wash chemicals.
Stealth 11 GPM Soft Wash Business Pack | Features
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Comet P40 Diaphragm Pump: Gear-driven, 3-diaphragm pump delivering 11 GPM at 300 PSI with a single-piece manifold designed for heavy chemical resistance.
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Honda GX200 Commercial Engine: Reliable gas-powered engine with a pull-start configuration, providing consistent torque without the need for on-board batteries.
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1" High-Flow Stealth Proportioner: Features dual 1" metering valves and a 1/2" soap valve to provide precise, batch-free chemical mixing at 8+ GPM flow rates.
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18" Full Frame Aluminum Reel: Corrosion-resistant reel frame featuring a 3/4" stainless steel manifold to resist chemical degradation and maximize throughput.
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200ft Stealth Soft Wash Hose: 5/8" ID blue hose rated for 300 PSI, optimized to reduce friction loss and deliver maximum volume to the applicator.
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WaterBoss 750 Gun: Ergonomic, high-volume applicator designed specifically for the flow characteristics of gas-powered soft wash systems.
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Zero-Brass Fluid Path: Utilizes only stainless steel and poly fittings, including 3/4" & 1/2" x 5/8" SS hose barbs for your hose to waterboss gun connection, and hose to stainless steel manifold connection. Also included TerreMax poly adapters, for total SH compatibility on the proportioner.
Stealth Elite 10 GPM Pressure Washing Pack | Specifications
| Specification | Details |
| Soft Wash System | Stealth (SW-P40-H) P40 Soft Wash Skid |
| Flow Rate | 11 GPM |
| Pressure Rating | 300 PSI |
| Engine Model | Honda GX200 |
| Pump Brand | Comet P40 Diaphrapgm Pump (Gear Driven) |
| Proportioner System | 1" High-Flow Stealth (Water/SH/Soap) |
| Hose Reel | 18" Stealth Aluminum w/ 3/4" SS Manifold |
| Soft Wash Hose | 200' 5/8" ID Stealth Blue |
| Spray Gun | WaterBoss 750 Soft Wash Gun |
| Fitting Material | 100% Stainless Steel & Poly Fittings |
| Skid Material | Aircraft-Grade Aluminum |
Stealth P40 Soft Wash System | Required Field Plumbing & Resources
The Stealth P40 is a "Pro-Builder" series system, providing the core industrial-grade components while allowing the contractor to customize the final plumbing layout for their specific truck or trailer build. To ensure peak performance and equipment longevity, the following plumbing configurations are required and are not included in the standard business pack.
Mandatory Technical Requirements
Bypass Line Configuration
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Function: Diaphragm pumps are positive displacement units; when the applicator trigger is closed, the fluid must be redirected to prevent pump damage.
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Requirement: Plumb a dedicated bypass line from the P40 regulator back to the water supply tank.
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Benefit: Continuous bypass flow keeps the diaphragms and seals cool during trigger-off periods, preventing premature failure.
High-Pressure Discharge Jumper
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Function: Bridges the high-pressure path between the pump outlet and the hose reel.
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Requirement: A 3/4" chemical-resistant discharge hose is recommended to connect the P40 pump to the 3/4" stainless steel hose reel swivel.
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Specification: Ensure this jumper line is rated for a minimum of 300 PSI and utilizes stainless steel fittings to maintain the zero-brass integrity of the system.
Suction and Intake Lines
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Inlet Side: The 1" Stealth Proportioner requires 1" reinforced, suction-rated hose to connect the water and SH metering valves to your bulk storage tanks.
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Soap Intake: Use 1/2" reinforced suction hose for the surfactant valve.
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Seal Integrity: Use high-quality stainless steel T-bolt or worm gear clamps on all suction-side barbs to prevent air leaks, which cause pump cavitation and inconsistent chemical mixing.