Comet P40 Soft Wash Pump
The Comet P40 Soft Wash Pump is a high-performance, three-diaphragm pump built for low-pressure, high-flow applications. It handles up to 11 GPM at 300 PSI and includes a ¾” solid shaft gearbox for reliable power transfer. Designed for soft washing, this pump features Desmopan diaphragms, a fully adjustable pressure regulator, and a corrosion-resistant polypropylene body.
To reduce leak points and simplify maintenance, the pump includes a centralized inlet, self-priming functionality, and a visible oil cup. It performs efficiently with sodium hypochlorite and is well-suited for exterior cleaning jobs that demand steady flow and chemical resistance.
Key Features:
- 2025 Upgraded Design
Reduces leak points, improved flow, and option to add a pressure gauge. - Chemical Resistant Diaphragms
Includes three Desmopan diaphragms for enhanced resistance to sodium hypochlorite and other common soft wash chemicals. - Adjustable Pressure Regulator
Comes with a built-in regulator that allows easy adjustment of spray pressure across different applications. - Self-Priming Capabilities
Starts up without the need for manual filling, making job setup faster and easier. - Durable Polypropylene Construction
Resists corrosion caused by bleach-heavy environments, supporting longer pump life. - Included ¾″ Solid Shaft Gearbox
Supports reliable power transfer from your motor or engine to the pump. -
Pump Motor Rating
Commonly paired with a Honda GX200 Engine -
Inlet and Outlet Size
1″ inlet and ½” outlet to support standard soft wash system setups with a 3/4″ bypass. - Pressure Gauge Port Included
Comes with a built-in port so you can easily add a pressure gauge to monitor system pressure.
***PRESSURE GAUGE NOT INCLUDED***
This Comet P40 Soft Wash Pump comes newly upgraded and delivers improved performance in the field. First, the design replaces the old multi-part manifold with a solid one-piece build. This change reduces leaks and increases durability. Next, the upgraded regulator uses a diaphragm system instead of a piston, which provides smoother pressure control and minimizes internal wear. Additionally, the repositioned suction fitting improves water flow and boosts efficiency during longer jobs. This updated model also includes a pressure gauge port. This feature lets you fine-tune your setup and troubleshoot with ease. Overall, the new P40 runs more reliably, requires less maintenance, and meets the demands of today’s soft wash professionals.