1. Product Overview
The Hayward 3315SA Pool Return Inlet is designed to optimize water circulation and filtration in concrete and liner pools. This adjustable nozzle allows for precise direction of the water jet, either towards the pool bottom or the surface, ensuring efficient distribution of treated water throughout the pool.
Its sand color is specifically chosen to blend seamlessly with beige-colored liner finishes, providing an aesthetically pleasing integration into your pool design.
2. Package Contents
Please verify that all the following components are included in your package:
- 1 x Nozzle
- 1 x Trim Ring
- 1 x Flange
- 1 x Ball Joint
- 1 x Ball Joint Seat
- 2 x Flange Gaskets
- 1 x Screw Kit
- 1 x Instruction Manual (this document)
3. Specifications
| Model Number | 3315SA |
| Brand | Hayward |
| Product Dimensions (L x W x H) | 13 x 12 x 10 cm (5.1 x 4.7 x 3.9 inches) |
| Product Weight | 203 grams (0.45 lbs) |
| Jet Diameter | 19 mm (0.75 inches) |
| Admissible Flow Rate | 5 to 6 m³/h (22 to 26 GPM) |
| Installation Type | Screwed or glued into standard 2" / Ø 50mm wall fitting |
| Color | Sand |
4. Setup and Installation
This return inlet is designed for installation in concrete pools with a liner finish. It can be either screwed or glued into a standard 2-inch (Ø 50mm) wall fitting.
- Prepare the Wall Fitting: Ensure the existing 2" / Ø 50mm wall fitting in your pool is clean and free of debris.
- Gasket Placement: Place one flange gasket on the threaded body of the return inlet.
- Insert into Wall: Carefully insert the threaded body of the return inlet through the wall fitting from the inside of the pool.
- Secure the Flange: From the outside of the pool, place the second flange gasket and then the flange over the threaded body. Secure it using the provided screw kit. Ensure a watertight seal by tightening the screws evenly.
- Nozzle Assembly: Insert the ball joint seat, then the ball joint, and finally the nozzle into the main body of the return inlet. The trim ring can be placed last for a finished appearance.
- Adhesive Option (if applicable): If gluing, apply appropriate PVC adhesive to the threaded body and the wall fitting according to the adhesive manufacturer's instructions before inserting and securing. Allow adequate curing time.

Figure 1: Hayward Pool Return Inlet, Model 3315SA. This image displays the sand-colored return inlet with its threaded body for wall installation and the adjustable nozzle for directing water flow.
5. Operation
The Hayward 3315SA return inlet features an adjustable nozzle (ball joint) that allows you to control the direction of the water jet. This adjustability is crucial for optimizing water circulation and ensuring proper filtration throughout your pool.
- Adjusting Jet Direction: Gently pivot the inner nozzle to direct the water flow.
- Surface Skimming: Direct the jet towards the surface to assist in pushing floating debris towards the skimmer.
- Bottom Circulation: Direct the jet towards the bottom of the pool to help circulate water from deeper areas and prevent dead spots where chemicals might settle.
Experiment with different jet directions to achieve the most effective water circulation pattern for your specific pool shape and size.
6. Maintenance
Regular maintenance of your Hayward return inlet will ensure its longevity and optimal performance.
- Regular Inspection: Periodically inspect the return inlet for any signs of damage, cracks, or wear.
- Cleaning: If debris accumulates around the nozzle or trim ring, gently clean it using a soft brush or cloth. Avoid abrasive cleaners that could damage the material.
- Gasket Check: Ensure the flange gaskets remain in good condition to prevent leaks. Replace if signs of deterioration are observed.
- Winterization: During winterization, ensure the return inlet is properly drained to prevent freezing damage, especially in regions with cold climates. Consult your pool's overall winterization guide for specific instructions.
7. Troubleshooting
If you encounter issues with your return inlet, consider the following common troubleshooting steps:
- Reduced Water Flow:
- Check your pool pump and filter system for proper operation and cleanliness.
- Ensure the nozzle is not obstructed by debris.
- Verify that all valves leading to the return inlet are fully open.
- Leaks Around the Inlet:
- Inspect the flange gaskets for proper seating and condition. Tighten the flange screws if necessary, but do not overtighten.
- If the inlet was glued, check for cracks in the adhesive seal.
- Difficulty Adjusting Nozzle:
- Ensure no debris is lodged in the ball joint mechanism.
- If the nozzle feels stiff, it may require gentle cleaning.
For persistent issues, it is recommended to consult a qualified pool technician.
8. Warranty and Support
For information regarding warranty coverage, technical support, or replacement parts for your Hayward 3315SA Pool Return Inlet, please refer to the official Hayward website or contact your authorized Hayward dealer.
Please retain your proof of purchase for any warranty claims.





