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Chemical Kit – Low Pressure (After Pump)
Place Order Before 2pm AEST For Same Day Dispatch.
Pickup available at SOFTWASH AUSTRALIA 2023
Usually ready in 24 hours

Chemical Kit – Low Pressure (After Pump)
SOFTWASH AUSTRALIA 2023
691 Pine Ridge Road
Biggera Waters QLD 4216
Australia
Chemical Kit – Low Pressure (After Pump)
Protect your high-pressure pump while applying soft wash detergents and soaps. Designed for downstream injection (after the pump), this brass low-pressure chemical kit siphons detergent directly into your fluid line under low-pressure conditions without exposing internal pump seals to harsh chemicals.
Features
- Low Pressure – To be used after pump
Specifications
- Flow: 11 – 19 L/min
- Max Pressure: 4,000 PSI
- Max Temp: 90°C
- Inlet: Quick Connect Plug
- Outlet: Quick Connect Coupling
- Material: Brass
Frequently Asked Questions
What does 'after pump' (downstream) chemical injection mean?
Downstream injection means the chemical injector is installed on the high-pressure outlet side of the pump. Detergent is siphoned into the water stream after it leaves the pump, preventing chemicals from passing through internal pump valves, packings, and manifolds.
How do I trigger the chemical kit to siphon detergent?
The injector works via a Venturi effect when line pressure drops. Switching your pressure washer tip to a low-pressure soap nozzle creates a pressure drop that automatically draws chemical into the water stream.
What pressure washer flow rate is required for this chemical kit?
This low-pressure chemical kit is calibrated for machines producing flow rates between 11 L/min and 19 L/min with maximum operating pressures up to 4,000 PSI.
Is this brass chemical injector compatible with hot water pressure washers?
Yes. It is rated to withstand water operating temperatures up to 90°C, making it suitable for both cold water and hot water pressure washing applications.
If your order is placed before 2:00pm, we will try to post same day.
We use a range of couriers to provide you with the best possible freight pricing.
If your order does not ship immediately, we are likely waiting on a courier update. Please refer to your account for updates or contact us to find out more.
We are happy to work with you if you need a return. Please contact us to discuss.

Contact Us
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