{"title":"Pressure Washer Chemical Injectors","description":"\u003ch2\u003eHow to Choose the Right Pressure Washer Chemical Injector\u003c\/h2\u003e\n\u003cp\u003eGPM is the first variable. The injector's orifice has to match your pump's flow or you won't get suction, no matter what tip you put on the wand. After that, you're picking between the standalone injector and the full bypass kit. And the chemical you're running matters, because some chemicals are fine for downstream injection and some will chew through brass and seals in a few months.\u003c\/p\u003e\n\u003ch3\u003eMatch the orifice to your GPM\u003c\/h3\u003e\n\u003cp\u003eA downstream injector works on vacuum. Water moves past the orifice, pressure drops, and that drop is what pulls chemical up the draw line. Too small an orifice for your GPM and you choke flow. Too big and there's not enough velocity to make vacuum at all, so the chemical just sits in the jug. Sizing runs 1.8 mm for 2 to 3 GPM machines, 2.1 mm for 3 to 5 GPM, and 2.3 mm for 5 to 8 GPM. When in doubt, go smaller. A slightly undersized injector still pulls, just slower.\u003c\/p\u003e\n\u003ch3\u003eStandalone injector or full bypass kit\u003c\/h3\u003e\n\u003cp\u003eThe $15 standalone injector pulls chemical when you have a low-pressure soap tip on, and stops when you swap to high pressure. That's it. The DN10 Bypass Kit is the same injector built into a stainless ball valve, stainless tees, and an 18-inch KobraJet hose rated to 4,000 PSI. The valve lets you shut off chemical draw without walking back to the gun to change tips. On long jobs with a lot of soap-and-rinse cycles, the kit gives you back real minutes.\u003c\/p\u003e\n\u003ch3\u003eWhat you're running through it\u003c\/h3\u003e\n\u003cp\u003eSurfactants, degreasers, and SH cut to house-wash strength all run fine through a downstream injector. Push undiluted 12.5% SH through one every day and you're replacing it inside a few months. The brass body and standard seals weren't built for that workload. If soft wash is your main service, skip the downstream injector and run a dedicated 12V or air pump with a proportioner. Different chemistry, different equipment.\u003c\/p\u003e\n\u003ch2\u003ePressure Washer Chemical Injector Sizing Chart\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePressure washer GPM\u003c\/th\u003e\n\u003cth\u003eInjector orifice size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 to 3 GPM\u003c\/td\u003e\n\u003ctd\u003e1.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 to 5 GPM\u003c\/td\u003e\n\u003ctd\u003e2.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 to 8 GPM\u003c\/td\u003e\n\u003ctd\u003e2.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eRelated Categories\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-accessories\"\u003ePressure Washer Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-nozzles\"\u003ePressure Washer Nozzles\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-hose\"\u003ePressure Washer Hose\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-guns\"\u003ePressure Washer Guns\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/soft-wash-proportioners\"\u003eSoft Wash Proportioners\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow does a pressure washer chemical injector work?\u003c\/h3\u003e\n\u003cp\u003eIt installs between your pump and your hose. When the wand has a low-pressure soap tip on, pressure drops at the injector and that drop creates suction. The suction pulls chemical from a jug through a 1\/4-inch draw line and mixes it into your flow. Swap to a high-pressure tip and the suction quits. You're back to rinsing with plain water.\u003c\/p\u003e\n\u003ch3\u003eWhat size chemical injector do I need?\u003c\/h3\u003e\n\u003cp\u003eMatch the orifice to your machine's GPM. 1.8 mm for 2 to 3 GPM. 2.1 mm for 3 to 5. 2.3 mm for 5 to 8. If you don't know your GPM off the top of your head, it's on the spec plate on the pump. Between sizes, pick the smaller orifice. A slightly small one pulls slower than ideal but still works. A slightly big one usually does nothing.\u003c\/p\u003e\n\u003ch3\u003eCan I run SH through a pressure washer chemical injector?\u003c\/h3\u003e\n\u003cp\u003eDiluted SH, fine. Full-strength 12.5% SH every day, no. These injectors are brass with standard seals. A 50\/50 SH mix for occasional house washes won't bother them. But daily SH at strength chews through seals in a few months and you're shopping for a new one. If soft washing is your main service, use a 12V or air pump with a proportioner.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the standalone injector and the DN10 bypass kit?\u003c\/h3\u003e\n\u003cp\u003eThe standalone injector pulls chemical anytime your tip lets vacuum form. That's all it does. The DN10 Bypass Kit puts the same injector inside a stainless ball valve, stainless tees, and a 4,000 PSI KobraJet hose. The valve shuts off chemical draw without you having to swap tips at the gun. If your jobs cycle between soaping and rinsing all day, the kit adds up to real time saved.\u003c\/p\u003e\n\u003ch3\u003eWhy isn't my chemical injector pulling soap?\u003c\/h3\u003e\n\u003cp\u003eAlmost always one of three things. Wrong tip on the wand, so the vacuum never forms. A clogged soap filter, or no filter at all and debris in the draw line. Or the orifice doesn't match your GPM. Check the tip first, then the filter, then the orifice. That sequence catches it about nine times out of ten.\u003c\/p\u003e\n\u003ch3\u003eDo I need a soap filter on my chemical injector?\u003c\/h3\u003e\n\u003cp\u003eYes. A $4 soap filter at the end of your draw line catches debris, plastic flakes, and tank sediment before any of it reaches the injector. Once an injector clogs internally, replacing it is usually easier than trying to clear it. For four bucks, the filter is the cheapest insurance on the rig.\u003c\/p\u003e","products":[{"product_id":"3-way-soap-tee","title":"3-Way Soap Tee","description":"\u003cp data-start=\"329\" data-end=\"854\"\u003eThe 3-Way Soap Tee installs on the soap line and gives you more control over what you are pulling through your system. By adding this 3-Way Soap Tee, you can split the soap line and switch between different soaps or switch between a soap and a bleach neutralizer without changing hoses. This setup effectively turns a standard three-way proportioner into a four-part option, giving you more flexibility during a job. It keeps your system cleaner, reduces downtime, and makes product changes faster while you work.\u003c\/p\u003e\n\u003ch3 data-start=\"856\" data-end=\"874\"\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"105\" data-end=\"261\"\u003e\n\u003cstrong data-start=\"105\" data-end=\"128\"\u003eSoap line expansion. \u003c\/strong\u003eAdds an extra split point directly on the soap line, giving you more options without changing the rest of your proportioner setup.\u003c\/li\u003e\n\u003cli data-start=\"263\" data-end=\"428\"\u003e\n\u003cstrong data-start=\"263\" data-end=\"289\"\u003eEasy product switching. \u003c\/strong\u003eLets you switch between different soaps or move between a soap and a bleach neutralizer without disconnecting hoses or stopping the job.\u003c\/li\u003e\n\u003cli data-start=\"430\" data-end=\"574\"\u003e\n\u003cstrong data-start=\"430\" data-end=\"454\"\u003eProportioner upgrade. \u003c\/strong\u003eTurns a standard three-way proportioner into a four-part system, adding flexibility without requiring a full rebuild.\u003c\/li\u003e\n\u003cli data-start=\"576\" data-end=\"708\"\u003e\n\u003cstrong data-start=\"576\" data-end=\"605\"\u003eClean and organized setup. \u003c\/strong\u003eHelps keep chemical lines organized and reduces the need for extra fittings or temporary hose swaps.\u003c\/li\u003e\n\u003cli data-start=\"710\" data-end=\"858\"\u003e\n\u003cstrong data-start=\"710\" data-end=\"739\"\u003eStandard connection sizes. \u003c\/strong\u003eUses 1\/4″ inputs and a 1\/2″ connection to the metering valve. Making it easy to install into most soft wash systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"180\" data-end=\"471\"\u003eThis 3-Way Soap Tee is a simple way to get more out of your proportioner without adding complexity. It helps keep jobs moving, reduces setup changes, and gives you better control over your soap selection. That’s why if you want a cleaner, more flexible soap setup, this is an easy upgrade that fits right in.\u003c\/p\u003e\n","brand":"Softwash Technologies","offers":[{"title":"Default Title","offer_id":46255583068349,"sku":"3WST","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0742\/5428\/7037\/files\/IMG_9086-scaled.jpg?v=1767143864"},{"product_id":"soap-filter","title":"Soap Filter","description":"\u003cp data-start=\"150\" data-end=\"609\"\u003eThe Soap Filter is for pros who want clean and steady chemical flow in both soft wash and pressure wash setups. It sits at the end of your draw line and blocks debris, flakes, and tank buildup from entering your system. This helps protect pumps, injectors, metering valves, and hoses from clogs. A clean draw line keeps your mix pulling smooth, which makes it easier to switch between soap and rinse while staying productive on the job.\u003c\/p\u003e\n\u003cp data-start=\"611\" data-end=\"897\"\u003eYou use a Soap Filter when you want to keep your system running without interruptions. It helps maintain steady draw on 12v pumps, air pumps, downstream injectors, and proportioner setups. Since it runs a simple 1\/4\" size, it fits most chemical draw lines with no extra fittings needed.\u003c\/p\u003e\n\u003ch3 data-start=\"899\" data-end=\"1337\"\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"899\" data-end=\"1337\"\u003e\n\u003cstrong data-start=\"920\" data-end=\"934\"\u003e1\/4\" size:\u003c\/strong\u003e Fits common chemical draw lines without adapters.\u003c\/li\u003e\n\u003cli data-start=\"899\" data-end=\"1337\"\u003e\n\u003cstrong data-start=\"989\" data-end=\"1014\"\u003eProtects your system: \u003c\/strong\u003eBlocks debris before it reaches pumps, injectors, or valves.\u003c\/li\u003e\n\u003cli data-start=\"899\" data-end=\"1337\"\u003e\n\u003cstrong data-start=\"1080\" data-end=\"1105\" data-is-only-node=\"\"\u003eSteady chemical pull:\u003c\/strong\u003e Helps maintain smooth flow during long jobs.\u003c\/li\u003e\n\u003cli data-start=\"899\" data-end=\"1337\"\u003e\n\u003cstrong data-start=\"1155\" data-end=\"1174\"\u003eSimple install:\u003c\/strong\u003e Slides onto your draw line and works right away.\u003c\/li\u003e\n\u003cli data-start=\"899\" data-end=\"1337\"\u003e\n\u003cstrong data-start=\"1228\" data-end=\"1254\"\u003eBetter equipment life:\u003c\/strong\u003e Reduces clogs and keeps flow parts cleaner in soft wash and pressure wash systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1339\" data-end=\"1649\"\u003eA Soap Filter may be small, but it makes a big difference in how smooth your day runs. It keeps your draw line clean, protects key parts of your system, and helps maintain steady chemical flow from start to finish. It’s a quick upgrade that saves time and prevents headaches on the job.\u003c\/p\u003e\n","brand":"Softwash Technologies","offers":[{"title":"Default Title","offer_id":46255588638909,"sku":"CF-GREY","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0742\/5428\/7037\/files\/Copy-of-Add-a-heading-4-1.jpg?v=1767144204"},{"product_id":"chemical-injector","title":"Chemical Injector","description":"\u003cp data-start=\"393\" data-end=\"822\"\u003eThe Chemical Injector is for pressure washing pros who need steady chemical pull while they clean. It draws mix into your water flow so you can soap and rinse without touching your machine. Both variations are rated up to 4500 PSI, so they handle strong machines and regular daily use.\u003c\/p\u003e\n\u003cp data-start=\"824\" data-end=\"1109\"\u003eYou use a Chemical Injector when you want consistent draw without slowing down. It supports even mix, smooth transitions between soap and rinse, and better coverage on larger jobs. The two GPM ranges let you match your injector to your machine so your flow and draw rate stay balanced.\u003c\/p\u003e\n\u003ch3 data-start=\"824\" data-end=\"1109\"\u003eKey Features:\u003c\/h3\u003e\n\u003cp data-start=\"824\" data-end=\"1109\"\u003e\u003cstrong data-start=\"1268\" data-end=\"1293\"\u003eRated up to 4500 PSI:\u003c\/strong\u003e Both GPM options handle high pressure, which makes them reliable across many pressure washer sizes.\u003cbr data-start=\"1393\" data-end=\"1396\"\u003e\u003cstrong data-start=\"1398\" data-end=\"1417\" data-is-only-node=\"\"\u003eTwo GPM ranges:\u003c\/strong\u003e Choose from 3-5 GPM or 5-8 GPM to match your machine for steady performance.\u003cbr\u003e\n\u003cstrong data-start=\"1150\" data-end=\"1184\"\u003e20 percent chemical draw rate:\u003c\/strong\u003e Provides strong and reliable pull so your mix stays consistent while you wash.\u003cbr data-start=\"1494\" data-end=\"1497\"\u003e\u003cstrong data-start=\"1499\" data-end=\"1526\"\u003eSmooth and steady draw:\u003c\/strong\u003e Keeps chemical feed even so your soap application stays the same from start to finish.\u003cbr data-start=\"1613\" data-end=\"1616\"\u003e\u003cstrong data-start=\"1618\" data-end=\"1642\"\u003eSimple installation:\u003c\/strong\u003e Installs in your pressure line and begins pulling chemical as soon as water flows.\u003cbr data-start=\"1725\" data-end=\"1728\"\u003e\u003cstrong data-start=\"1730\" data-end=\"1751\"\u003eCleaner workflow:\u003c\/strong\u003e Lets you switch between chemical and rinse fast, keeping your jobs moving without equipment changes.\u003c\/p\u003e\n\u003cp data-start=\"1854\" data-end=\"2224\"\u003eA Chemical Injector is a key part of any pressure washing setup. It keeps your mix controlled, your soap application even, and your workflow steady. When matched to your machine, it helps you handle bigger jobs faster with less stopping, fewer adjustments, and better results. It is a small part that has a big impact on how smooth your day goes.\u003c\/p\u003e\n","brand":"Softwash Technologies","offers":[{"title":"5-8 GPM","offer_id":46255588966589,"sku":"22.0353","price":16.0,"currency_code":"USD","in_stock":true},{"title":"3-5 GPM","offer_id":46255588999357,"sku":"22.0352","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0742\/5428\/7037\/files\/product-pics-11-1.jpg?v=1767144213"},{"product_id":"chemical-injector-dn10-bypass-kit","title":"Chemical Injector DN10 Bypass Kit","description":"\u003ch1 data-start=\"213\" data-end=\"285\"\u003e\u003cstrong data-start=\"213\" data-end=\"285\"\u003eChemical Injector DN10 Bypass Kit – For Soft Washing \u0026amp; Downstreaming\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp class=\"\" data-start=\"240\" data-end=\"535\"\u003eThis chemical injector bypass kit gives you full control over your cleaning setup. Whether you’re soft washing or downstreaming, it lets you easily switch between applying chemical and rinsing with water. There’s no need to disconnect or swap parts, so you can keep working without interruption.\u003c\/p\u003e\n\u003cp class=\"\" data-start=\"537\" data-end=\"779\"\u003eIt includes a high-performance chemical injector (with your chosen orifice size), stainless steel quick connects, and the industry-leading DN10 ball valve for quick shut-off. The 18\" black KobraJet hose is built tough and rated for 4,000 PSI.\u003c\/p\u003e\n\u003ch2 data-start=\"1055\" data-end=\"1075\"\u003eWhat's Included:\u003c\/h2\u003e\n\u003cul data-start=\"1076\" data-end=\"1228\"\u003e\n\u003cli class=\"\" data-start=\"1076\" data-end=\"1095\"\u003e\n\u003cp class=\"\" data-start=\"1078\" data-end=\"1095\"\u003eDN10 Ball Valve\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"1096\" data-end=\"1133\"\u003e\n\u003cp class=\"\" data-start=\"1098\" data-end=\"1133\"\u003eStainless steel tees and fittings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"1134\" data-end=\"1190\"\u003e\n\u003cp class=\"\" data-start=\"1136\" data-end=\"1190\"\u003eHigh-performance chemical injector, tube, and filter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"1191\" data-end=\"1228\"\u003e\n\u003cp class=\"\" data-start=\"1193\" data-end=\"1228\"\u003e18\" Black 4,000 PSI KobraJet hose\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"\" data-start=\"1235\" data-end=\"1434\"\u003e\u003cstrong data-start=\"1235\" data-end=\"1244\"\u003eNote:\u003c\/strong\u003e Compatible with most soft wash and pressure washing systems that use downstream injection. Make sure to choose the correct orifice size (1.8, 2.1, or 2.3) based on your machine’s flow rate.\u003c\/p\u003e\n\u003ctable class=\"[\u0026amp;_tr:last-child_td]:border-b-0 my-0 w-full table-auto border-separate border-spacing-0 text-sm font-sans rounded-lg [\u0026amp;_tr:last-child_td:first-child]:rounded-bl-lg [\u0026amp;_tr:last-child_td:last-child]:rounded-br-lg\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" class=\"border-subtlest p-sm min-w-[48px] break-normal border-b text-left align-bottom border-r last:border-r-0 font-bold bg-subtle first:border-radius-tl-lg last:border-radius-tr-lg\"\u003eOrifice size\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"border-subtlest p-sm min-w-[48px] break-normal border-b text-left align-bottom border-r last:border-r-0 font-bold bg-subtle first:border-radius-tl-lg last:border-radius-tr-lg\"\u003eTypical GPM range\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e1.8 mm\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e2–3 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e2.1 mm\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e3–5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e2.3 mm\u003c\/td\u003e\n\u003ctd class=\"border-subtlest px-sm min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e5–8 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr data-start=\"1216\" data-end=\"1219\"\u003e\u003cstrong data-start=\"145\" data-end=\"206\"\u003eSo, why should you buy the Chemical Injector DN10 Bypass kit?\u003c\/strong\u003e\u003cbr data-start=\"1221\" data-end=\"1224\"\u003eBecause this setup helps you move faster, save time, and stay in control throughout the job. It eliminates the hassle of stopping to switch equipment or flushing lines between chemical and water. Just turn the valve and keep going. You avoid unnecessary wear on your injector, maintain steady performance, and finish jobs more efficiently. This kit makes your work cleaner, smoother, and more professional. If you want a setup that keeps up with you in the field, this one’s ready to go when you are!\u003c\/p\u003e","brand":"Softwash Technologies","offers":[{"title":"5-8 GPM","offer_id":46255616196797,"sku":"22.0502","price":153.0,"currency_code":"USD","in_stock":true},{"title":"3-5 GPM","offer_id":46255616229565,"sku":"22.0501","price":162.0,"currency_code":"USD","in_stock":true},{"title":"2-3 GPM","offer_id":46255616262333,"sku":"22.0500","price":161.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0742\/5428\/7037\/files\/Chemical-injector-DN10-bypass-kit.png?v=1767145315"}],"url":"https:\/\/softwashtechnologies.com\/collections\/pressure-washer-chemical-injectors.oembed","provider":"Softwash Technologies","version":"1.0","type":"link"}