1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Wellmate WM-14 / WM0180QC Captive Air and Retention Fiberglass Tank. Please read this manual thoroughly before attempting to install or operate the unit. Proper installation and maintenance are crucial for optimal performance and longevity of the tank.
The Wellmate WM-Series tanks are designed for residential and commercial water systems, offering a durable, corrosion-resistant, and lightweight alternative to traditional steel tanks. Their fiberglass construction ensures reliability and reduces maintenance requirements.
2. Safety Information
WARNING: Failure to follow these safety instructions could result in serious injury or property damage.
- Always depressurize the system before performing any maintenance or installation procedures.
- Ensure all connections are secure and leak-free to prevent water damage.
- Do not exceed the maximum operating pressure specified for the tank.
- Wear appropriate personal protective equipment (PPE) during installation and maintenance.
- Consult a qualified professional for installation if you are unsure about any steps.
- Keep children and unauthorized personnel away from the installation area.
3. Product Overview
The Wellmate WM-14 / WM0180QC tank is a high-performance captive air and retention tank featuring advanced composite construction. Its design prioritizes durability, efficiency, and ease of maintenance.
Key Features:
- Quick Connect: Designed for easier field servicing and installation.
- Replaceable Air Cell: The interior air cell can be replaced, extending the tank's service life without needing to replace the entire unit.
- Corrosion-Proof Construction: Fiberglass composite material prevents rust, making it ideal for various environments, including coastal regions.
- Lightweight: Significantly lighter than steel tanks, simplifying transport and installation.
- Greater Drawdown: Offers higher efficiency compared to similarly sized steel tanks.
Internal Components:
- Durable Interior Air Cell: Fully replaceable and constructed of heavy-gauge engineered polymer.
- Seamless Inner Shell: Molded from premium, high-density polyethylene.
- Outer Shell: Composed of continuous fiberglass strands sealed with high-grade epoxy resin.
- Sturdy, Molded Polymeric Base: Corrosion and impact proof.
- Bottom Inlet/Outlet Drain: One-piece drain custom molded of high-impact PVC.
4. Setup and Installation
The Wellmate WM-14 / WM0180QC tank is designed for quicker and less costly installation, often requiring only one person. Follow these general steps for proper setup:
- Unpack and Inspect: Carefully remove the tank from its packaging. Inspect for any shipping damage.
- Choose Location: Select a suitable location that is level, protected from freezing temperatures, and provides adequate space for maintenance.
- Prepare System: Ensure the water supply to the system is shut off and the system is depressurized.
- Connect Plumbing: Connect the tank to your water system using the 1 1/4 inch male NPT inlet/outlet. Ensure all connections are tight and use appropriate sealants. The Quick Connect feature simplifies this process.
- Pre-charge Pressure: Before filling the tank with water, set the air pre-charge pressure. The recommended pre-charge pressure is typically 2 PSI below the pump's cut-in pressure. Use an accurate air pressure gauge for this step.
- Fill System: Slowly open the main water supply valve to allow water to fill the system and the tank. Check for leaks at all connections.
- Restore Power: Once the system is filled and leak-free, restore power to the pump.
- Verify Operation: Monitor the pump's cycling and tank pressure to ensure proper operation.
5. Operating Instructions
The Wellmate WM-14 / WM0180QC tank operates by maintaining a cushion of air that compresses as water enters the tank, storing pressurized water. When water is drawn from the system, the compressed air pushes the water out, reducing pump cycles.
- Automatic Operation: Once properly installed and pre-charged, the tank operates automatically with your water pump system.
- Pressure Monitoring: Periodically check the system pressure to ensure it is within the desired operating range.
- Pump Cycling: The tank's primary function is to reduce the frequency of pump cycles, which extends pump life and saves energy. A properly sized and pre-charged tank will result in longer pump run times and fewer starts.
6. Maintenance
Wellmate tanks are designed to be virtually maintenance-free due to their corrosion-proof construction. However, periodic checks are recommended to ensure continued optimal performance.
- Check Air Pre-charge: Annually, or if pump cycling becomes frequent, check the air pre-charge pressure. To do this, shut off the water supply, drain the system completely, and then check the air pressure at the Schrader valve. Adjust if necessary to 2 PSI below the pump's cut-in pressure.
- Inspect for Leaks: Periodically inspect all plumbing connections for any signs of leaks.
- Replace Air Cell: The replaceable air cell feature allows for easier field servicing. If the air cell is compromised (e.g., waterlogged tank, constant pump cycling despite correct pre-charge), it can be replaced without replacing the entire tank. Consult a professional for air cell replacement.
- Clean Exterior: Clean the exterior of the tank with mild soap and water as needed. Avoid abrasive cleaners.
7. Troubleshooting
Refer to the following table for common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump cycles too frequently (short cycling) | Low or no air pre-charge in the tank; Waterlogged tank (compromised air cell) | Check and adjust air pre-charge pressure. If issue persists, the air cell may need replacement. |
| Water seeping from top (near air valve) | Compromised air cell or valve seal | Inspect the air valve for damage. If the air cell is compromised, it will need replacement. |
| Water leaking from bottom of tank | Damaged bottom inlet/outlet connection or tank base | Inspect the connection for proper sealing. If the tank itself is damaged, contact support. |
| No water pressure | Pump failure; System leak; Tank completely waterlogged | Check pump operation. Inspect entire system for leaks. Check tank pre-charge and air cell integrity. |
8. Specifications
The Wellmate WM-14 / WM0180QC Captive Air and Retention Fiberglass Tank offers the following specifications:
- Model Number: WM-14/WM0180QC
- Capacity: 47.1 gallons (178 liters)
- Maximum Operating Pressure: 125 psi (8.6 bar)
- Drawdown: 14.6 gallons (55.3 liters)
- Diameter: 21 inches (53 cm)
- Overall Height: 41.3 inches (105 cm)
- Inlet/Outlet to Floor Height: 2 1/4 inches (5.7 cm)
- System Connection: 1 1/4 inch male NPT
- Assembly Weight: 46.27 lbs (21.0 kg)
- Manufacturer: Wellmate
- Item Weight: 62 pounds (shipping weight)
9. Warranty and Support
Wellmate tanks are known for their durability and long service life. An extended labor warranty option may be available to homeowners for added peace of mind. For specific warranty details, please refer to the documentation provided at the time of purchase or contact Wellmate customer support.
For technical assistance, replacement parts, or warranty claims, please contact your authorized Wellmate dealer or visit the official Wellmate website for support resources.