1. Introduction
The SEAFLO 39 oz (1.0 L) Pressurized Accumulator Tank is designed to enhance the performance and lifespan of your water pump system in marine, RV, and off-grid applications. This tank minimizes pump on/off cycling, reduces noise, and provides a smoother, more consistent water flow throughout your system. It is equipped with a pre-pressurized internal bladder for maintenance-free operation and is certified safe for potable water.
Figure 1: SEAFLO Accumulator Tank with key specifications.
2. Safety Information
- Always disconnect power to the water pump before installing or servicing the accumulator tank.
- Ensure all plumbing connections are secure to prevent leaks.
- Do not exceed the maximum operating pressure of 125 PSI (8.6 BAR).
- Wear appropriate personal protective equipment during installation.
- This product is designed for potable water systems. Do not use with flammable liquids or other non-potable substances.
3. Product Features
- Reduces Pump Cycling: Minimizes the frequency of pump activation, extending pump life and reducing noise.
- Smooths Water Flow: Absorbs pressure spikes to provide a consistent and steady water flow at faucets and appliances.
- Maintenance-Free Bladder: Features a pre-pressurized rubber diaphragm that prevents waterlogging and requires no upkeep.
- Universal Mounting: Can be installed in any position (vertical, horizontal, inverted) for flexible placement.
- Certified Safe: Tested and approved to NSF/ANSI/CAN 61 & 372 for drinking water safety, NSF 24 for RV plumbing, UL 778, and CSA C22.2 No. 108.
Figure 2: Key features of the SEAFLO Accumulator Tank.
4. Specifications
| Specification | Value |
|---|---|
| Model | SFAT-100-125-01 |
| Internal Volume | 1.0 L (33.8 oz) |
| Pre-Charge Pressure | 10 PSI (0.7 BAR) |
| Max Operating Pressure | 125 PSI (8.6 BAR) |
| Inlet/Outlet | 1/2" MNPT |
| Air Fill Valve | Standard Automotive Style Tire Valve |
| Material | Metal |
| Item Weight | 1.45 pounds |
| Certifications | NSF/ANSI/CAN 61 & 372, NSF 24, UL 778, CSA C22.2 No. 108 |
Figure 3: Dimensions of the SEAFLO 1.0 L Accumulator Tank.
5. Installation
5.1 Pre-Installation Checks
- Ensure the accumulator tank is suitable for your system's pressure requirements.
- Verify that the pre-charge pressure is set to 10 PSI (0.7 BAR). Adjust if necessary using a standard tire pressure gauge and pump.
- Gather necessary tools and additional fittings (e.g., thread sealant, wrenches).
5.2 Mounting
The SEAFLO accumulator tank can be mounted in any position (vertical, horizontal, or inverted) due to its internal bladder design. Choose a location that is easily accessible for inspection and maintenance, and close to the water pump for optimal performance. Use the integrated mounting brackets and soft rubber mounts to secure the tank, which also help reduce noise and vibrations.
Figure 4: The compact design allows for versatile installation in tight spaces.
5.3 Plumbing Connections
- Install the accumulator tank on the discharge side of your water pump, before any fixtures or appliances.
- The tank features 1/2" MNPT inlet/outlet ports. Apply appropriate thread sealant to all connections.
- Connect the water lines securely. The product includes two 1/2" fittings.
- Ensure there are no kinks or restrictions in the plumbing lines leading to and from the tank.
Figure 5: Standard and optional fittings for plumbing connections.
6. Operating Instructions
Once installed, the SEAFLO accumulator tank operates automatically with your water pump system. When water is drawn from the system, the pre-charged bladder in the tank expands, pushing water out and delaying the pump's activation. This reduces the number of times the pump turns on and off, leading to a quieter system and extended pump life. When the pressure drops below the pump's cut-in pressure, the pump will activate to refill the system and the accumulator tank.
Figure 6: The accumulator tank reduces pump cycling.
Figure 7: The accumulator tank smooths water faucet pulses.
7. Maintenance
The SEAFLO accumulator tank features a maintenance-free internal bladder. This design prevents waterlogging and eliminates the need for regular upkeep of the bladder itself.
However, it is recommended to periodically check the air pre-charge pressure using a standard tire pressure gauge. The factory pre-charge is 10 PSI (0.7 BAR). If the pressure drops, recharge the tank using a bicycle pump or air compressor to the recommended pressure. This ensures optimal performance and efficiency of your water system.
Figure 8: The pre-pressurized internal bladder requires no regular upkeep.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump cycles too frequently | Low air pre-charge in tank | Check and adjust air pressure to 10 PSI (0.7 BAR). |
| Waterlogging in tank | Drain system, check air pressure, and refill. If problem persists, inspect bladder for damage. | |
| Inconsistent water flow / Pulsation | Low air pre-charge | Check and adjust air pressure to 10 PSI (0.7 BAR). |
| Air in water lines | Bleed air from the water system by opening all faucets until water flows smoothly. | |
| Water leaks from connections | Loose fittings or insufficient sealant | Tighten all connections and reapply thread sealant if necessary. |
9. Warranty
The SEAFLO 39 oz (1.0 L) Pressurized Accumulator Tank is covered by a 4-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
10. Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact SEAFLO customer support. Refer to the official SEAFLO website or your product packaging for the most current contact information.
