{"product_id":"comet-p40-soft-wash-pump","title":"Comet P40 Soft Wash Pump","description":"\u003c!-- HOOK --\u003e\n\u003cp\u003eThe Comet P40 Soft Wash Pump moves up to 11 GPM at 300 PSI through three diaphragms, so it pumps SH all day without corroding. You get the pump head, a 3\/4\" solid-shaft gearbox, and an adjustable regulator. No engine.\u003c\/p\u003e\n\u003c!-- KEY FEATURES --\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-diaphragm design:\u003c\/strong\u003e Pumps SH and surfactant without the corrosion that kills brass and steel plunger pumps. The diaphragms keep chemical off the drive train.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 11 GPM:\u003c\/strong\u003e High flow at low pressure throws solution to roof and second-story height. This is a soft wash pump, not a high-pressure washer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesmopan diaphragms:\u003c\/strong\u003e Rated for sodium hypochlorite and the other aggressive chemicals soft washing runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoly and 316 stainless wet parts:\u003c\/strong\u003e No brass in the chemical path. The whole wetted side is built to live in bleach.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-piece manifold (2025 design):\u003c\/strong\u003e Fewer leak points and quicker service than the older multi-piece layout, with a bolt-on regulator and aluminum head plates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/4\" gearbox and adjustable regulator:\u003c\/strong\u003e Bolts to a 5 to 6.5 HP horizontal-shaft engine and dials pressure where you want it. Built-in gauge port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- SPECIFICATIONS --\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePump type\u003c\/th\u003e\n\u003ctd\u003e3-diaphragm, semi-hydraulic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax flow\u003c\/th\u003e\n\u003ctd\u003eUp to 11 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax pressure\u003c\/th\u003e\n\u003ctd\u003eUp to 300 PSI (low-pressure, high-flow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax RPM\u003c\/th\u003e\n\u003ctd\u003e550\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInlet \/ outlet\u003c\/th\u003e\n\u003ctd\u003e1\" inlet, 3\/4\" outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiaphragm material\u003c\/th\u003e\n\u003ctd\u003eDesmopan, rated for SH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWet parts\u003c\/th\u003e\n\u003ctd\u003ePolypropylene manifold, 316 stainless check valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive\u003c\/th\u003e\n\u003ctd\u003e3\/4\" solid-shaft gearbox (fits 5 to 6.5 HP engines)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump oil capacity\u003c\/th\u003e\n\u003ctd\u003e30.4 fl oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax fluid temp\u003c\/th\u003e\n\u003ctd\u003e140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eAbout 40 lb (pump, gearbox, regulator; no engine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eMade in Italy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- WHAT'S INCLUDED \/ COMPATIBILITY --\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eComet P40 pump head\u003c\/li\u003e\n\u003cli\u003e3\/4\" solid-shaft gearbox\u003c\/li\u003e\n\u003cli\u003eAdjustable pressure regulator\u003c\/li\u003e\n\u003cli\u003eBuilt-in gauge port (offered with or without an installed gauge)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo engine. The complete gas sprayer and the full soft wash bundle are separate products. The pump bolts to a Honda GX160, GX200, or similar 5 to 6.5 HP horizontal-shaft engine through the 3\/4\" gearbox, and the current model also runs on an electric-motor setup. It plumbs into a soft wash proportioner or metering block with 1\" valves, 5\/8\" or 1\/2\" SH-rated soft wash hose, chem tanks, and a hose reel. It's a low-pressure pump at 300 PSI. It isn't for surface cleaners or 4000 PSI pressure-washing work, and it isn't rated for solvents or acids.\u003c\/p\u003e\n\u003c!-- HOW IT WORKS --\u003e\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThree diaphragms flex in an oil bath, driven by a connecting-rod mechanism. The diaphragms physically separate the chemical from the drive train and crankcase oil, so SH only ever touches the polypropylene manifold, the 316 stainless valves, and the diaphragm face. That's why it survives bleach where a piston pump's brass and steel wet parts corrode and fail. The pump self-primes, draws your mixed solution from the tank or proportioner, and pushes high flow at low pressure out to the reel and gun.\u003c\/p\u003e\n\u003cp\u003eFlush it with fresh water for at least 5 minutes after every job. Never leave SH sitting in the pump, never run it dry, and don't hold it in bypass longer than 60 seconds.\u003c\/p\u003e\n\u003c!-- PAIRS WELL WITH --\u003e\n\u003ch2\u003ePairs Well With\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/waterboss-750-soft-wash-gun\"\u003eWaterBoss 750 Soft Wash Gun\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/soft-wash-proportioner\"\u003eSoft Wash Proportioner\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/comet-p40-plumbing-kit\"\u003eComet P40 Plumbing Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/soft-wash-hose\"\u003eRampage Soft Wash Hose\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/comet-p40-repair-kit\"\u003eComet P40 Repair Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- FAQ --\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow many GPM is the Comet P40?\u003c\/h3\u003e\n\u003cp\u003eUp to 11 GPM at 300 PSI. That's high flow at low pressure, which is what soft washing needs to throw solution up to roof and second-story height. It's a diaphragm pump, not a high-pressure washer.\u003c\/p\u003e\n\u003ch3\u003eWill the Comet P40 handle 12.5% SH?\u003c\/h3\u003e\n\u003cp\u003eYes. The wet parts are polypropylene, 316 stainless, and Desmopan diaphragms, all rated for sodium hypochlorite. Flush with fresh water for at least 5 minutes after every job and never leave SH sitting in the pump.\u003c\/p\u003e\n\u003ch3\u003eGas Comet P40 or a 12V pump for soft washing?\u003c\/h3\u003e\n\u003cp\u003eThe gas P40 gives higher flow, around 11 GPM, with longer reach and longer service life for big and commercial jobs. A 12V pump runs 5.3 or 7 GPM, quieter and cheaper, and makes sense for part-time or lower-volume residential work. The P40 is the pump you grow into.\u003c\/p\u003e","brand":"Softwash Technologies","offers":[{"title":"Default Title","offer_id":46255615541437,"sku":"CMP40\/GB","price":1465.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0742\/5428\/7037\/files\/PRODUCT-1-scaled.png?v=1767145259","url":"https:\/\/softwashtechnologies.com\/products\/comet-p40-soft-wash-pump","provider":"Softwash Technologies","version":"1.0","type":"link"}