Flexcon FL12 FLEX-LITE Vertical Composite Well Tank – 35 Gallons.

Product Overview

The Flexcon FL12 FLEX-LITE 35-Gallon Vertical Composite Well Tank is engineered for long-lasting, corrosion-proof performance in residential and light commercial well water systems. Built using Flexcon’s CAD-2 patented diaphragm technology, the FL12 improves pressure consistency, reduces condensation, and extends pump life.

Made from a fully composite body, this tank will never rust and is approximately 35% lighter than comparable steel tanks. With over 15 years of proven field performance, the FLEX-LITE series is one of the most reliable advanced well tanks available.

Features & Benefits

• Corrosion-proof composite construction—no steel to rust or corrode.
• Approximately 35% lighter than similarly sized steel tanks.
• CAD-2 diaphragm design reduces condensation and enhances performance.
• 100% butyl rubber top diaphragm for superior elasticity and lifespan.
• Antimicrobial polypropylene lower water chamber for sanitary operation.
• Fiberglass-wound epoxy-coated outer shell for strength and durability.
• Injection-molded polypropylene domes and base for structural stability.
• Rigid Schedule 80 PVC water connection for corrosion resistance.
• Brass air valve with O-ring for secure pressurization.
• Factory tested for seam integrity, high pressure, helium leaks, and precharge accuracy.
• Backed by a 5-year manufacturer warranty.

Specifications

• Model: FL12
• Tank Capacity: 35 gallons
• Orientation: Vertical
• Construction: Composite
• Top & Bottom Domes: Injection-molded copolymer polypropylene
• Inner Shell: Extruded copolymer polypropylene
• Outer Shell: Fiberglass-wound with epoxy coating
• Diaphragm: 100% butyl rubber
• Lower Water Chamber: Antimicrobial copolymer polypropylene
• Base: Copolymer polypropylene
• Connection: Schedule 80 PVC
• Air Valve: Brass with O-ring seal
• Warranty: 5 years
• Cross References: Pro-Source PSC-35-10, Wellmate WM12

Installation Tips

• Size the tank according to pump capacity and system drawdown requirements.
• Pre-charge the tank to 2 psi below the system's cut-in pressure.
• Install vertically on a solid, level base.
• Protect the tank from freezing or direct sunlight exposure.
• Support plumbing attached to the Schedule 80 PVC connection.
• Inspect annually to confirm air charge and water chamber performance.

FAQs

1. What makes the FL12 better than steel well tanks?
   The composite design is corrosion-proof, lighter, and reduces condensation while improving lifespan.
2. Does the FL12 reduce condensation?
   Yes. The CAD-2 diaphragm significantly reduces sweating and moisture buildup.
3. Is the FL12 compatible with potable water?
   Yes. The inner water chamber uses antimicrobial materials safe for drinking water systems.
4. Which tanks does the FL12 replace?
   It replaces Pro-Source PSC-35-10 and Wellmate WM12 tanks.
5. How often should maintenance be done?
   Perform yearly inspections to ensure proper pre-charge and system performance.

Product Literature:

• Flexcon FL FLEX-LITE Product Literature

Submittal Literature

• Flexcon FL FLEX-LITE Submittal Sheet