Introduction
This manual provides instructions for the installation, operation, and maintenance of your Waterway Plastics 210-3400 Mini Gunite Adjustable Spa Jet. Please read these instructions carefully before installation and use to ensure proper function and longevity of your product. This spa jet is designed for gunite spa applications and offers directional water flow.

Figure 1: Waterway Plastics 210-3400 Mini Gunite Adjustable Spa Jet. This image shows the complete jet assembly, featuring its white finish and compact design suitable for spa installations.
Setup & Installation
Proper installation is crucial for the performance and safety of your spa jet. It is recommended that installation be performed by a qualified professional.
Required Tools and Materials:
- PVC Cement and Primer
- Measuring Tape
- Pipe Cutters or Saw
- Safety Glasses
- Gloves
Installation Steps:
- Prepare the Spa Shell: Ensure the spa shell has a properly sized hole for the jet body. The recommended hole size for this jet is approximately 2 inches.
- Connect Water Line: The jet requires a 2-inch slip (s) water connection. Apply PVC primer and cement to the water inlet of the jet body and the corresponding PVC pipe from your spa's plumbing system. Firmly connect the pipe to the jet body.
- Connect Air Line: The jet requires a 1-1/2 inch slip (s) air connection. Apply PVC primer and cement to the air inlet of the jet body and the corresponding PVC pipe from your spa's air plumbing system. Firmly connect the pipe to the jet body.
- Secure the Jet Body: Once plumbing connections are made and cured, ensure the jet body is securely seated in the spa shell.
- Install Jet Internal: Insert the directional jet internal into the jet body. Ensure it clicks into place or is firmly seated.
- Test for Leaks: After installation, fill the spa and run the pump to check for any leaks at the connections. Address any leaks immediately.
Operation
The Waterway Plastics 210-3400 Mini Gunite Adjustable Spa Jet is designed for simple operation, allowing users to customize their spa experience.
Adjusting Water Flow Direction:
- To adjust the direction of the water flow, gently rotate the outer face of the jet internal.
- The directional internal allows you to point the water stream to specific areas of the spa or body for targeted hydrotherapy.
- Do not force the adjustment beyond its natural range of motion.
Turning Jets On/Off:
- The spa jets are typically controlled by the spa's main control panel or air buttons. Refer to your spa's owner's manual for specific instructions on activating and deactivating the jet pump and air blower.
- Some jet internals may allow for individual on/off control by rotating the face, but this model primarily focuses on directional adjustment.
Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your spa jet.
Cleaning the Jet:
- Periodically inspect the jet face for debris, mineral buildup, or calcium deposits.
- To clean, you may gently remove the jet internal by twisting and pulling it out.
- Soak the jet internal in a solution of warm water and a mild spa cleaner or white vinegar to dissolve mineral deposits.
- Use a soft brush to remove any stubborn debris.
- Rinse thoroughly with clean water before reinserting.
- Do not use abrasive cleaners or harsh chemicals, as these can damage the jet's finish.
Winterization:
- If you winterize your spa, ensure all water is drained from the jet plumbing lines to prevent freezing and potential damage.
- Consult your spa's winterization guide for complete instructions.
Troubleshooting
This section addresses common issues you might encounter with your spa jet.
| Problem | Possible Cause | Solution |
|---|---|---|
| Weak Water Flow |
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| No Water Flow |
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| Water Leaking Around Jet |
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Specifications
Detailed specifications for the Waterway Plastics 210-3400 Mini Gunite Adjustable Spa Jet.
- Model Number: 210-3400
- Manufacturer: Waterway Plastics
- Jet Type: Complete Jet Assembly, Mini Gunite
- Internal Type: Directional
- Face Style: Deluxe Scalloped
- Face Diameter: 2-9/16 inches
- Hole Size Required: 2 inches
- Water Connection Size: 2 inches Slip (s)
- Air Connection Size: 1-1/2 inches Slip (s)
- Color: White
- Product Dimensions: 7 x 7 x 6 inches
- Item Weight: 14.4 ounces
Warranty & Support
For warranty information or technical support regarding your Waterway Plastics 210-3400 Mini Gunite Adjustable Spa Jet, please contact Waterway Plastics directly or refer to their official website. Keep your purchase receipt as proof of purchase.
Manufacturer Contact:
- Brand: Waterway Plastics
- Website: www.waterwayplastics.com (Please note: This is a general placeholder URL. Refer to product packaging or official documentation for the exact support contact information.)



