Hayward Auto Switchover CO2 Manifold
The Hayward Auto Switchover CO2 Manifold is the essential accessory for CO2-based pH control systems at commercial pools. When one CO2 tank runs empty, the manifold automatically switches to the reserve tank — effectively doubling the unattended service interval without interruption to pH control.
Built by Hayward with durable machined construction, twin pressure gauges for monitoring both tanks simultaneously, a mechanical "cylinder in use" indicator, and all required hoses included. Connects to any CO2 pH control system. Backed by a 1-year warranty.
Key Features
Automatic Tank Switchover
Detects an empty CO2 canister and automatically switches to the reserve tank — no manual intervention required.
Doubles Unattended Service Interval
Two-tank operation means pH control continues uninterrupted even after the primary tank is exhausted.
Twin Pressure Gauges
Monitor both tanks simultaneously — know at a glance how much CO2 is remaining in each cylinder.
Mechanical "Cylinder in Use" Indicator
Innovative mechanical indicator shows which tank is currently active — easy identification during routine checks.
All Hoses Included
Comes complete with all required hoses for immediate installation.
Universal CO2 System Compatibility
Connects to any CO2 pH control system — not limited to Hayward controllers.
Durable Machined Construction
Precision machined components for long commercial service life.
Simple Installation
Straightforward installation that connects directly to existing CO2 pH control systems.
Who It's For
- Commercial pool operators using CO2 for pH control who want uninterrupted operation between tank exchanges
- Facilities where extending the time between CO2 service visits is important — overnight, weekend, or remote locations
- Anyone replacing or upgrading an existing CO2 manifold on any brand of CO2 pH control system
Specifications
System
| Function | Automatic Two-Tank CO2 Switchover |
| Compatibility | Any CO2 pH Control System |
| Includes | Twin Pressure Gauges, Mechanical "In Use" Indicator, All Hoses |
Physical
| Product Weight | 6 lb |
| Shipping Dimensions | 14.5 × 10.5 × 6.2 in |
Approvals & Warranty
| Warranty | 1 Year |
What's in the Box
- Hayward Auto Switchover CO2 Manifold (AC006)
- All Required Hoses
- Installation Instructions
Warranty
The Hayward Auto Switchover CO2 Manifold comes with a 1-year warranty. Clearflow Pool Supply is an authorized Hayward dealer and will assist with any warranty service needed.
Frequently Asked Questions
How does the automatic switchover work?
The manifold continuously monitors the pressure in the primary CO2 tank. When pressure drops to the point that the tank is nearly exhausted, the manifold's internal mechanism automatically opens the valve to the reserve tank — maintaining CO2 flow to the pH control system without any interruption. The mechanical indicator shows which tank is now active so staff can promptly replace the empty cylinder.
Is this compatible with all CO2 pH control systems?
Yes. The AC006 is designed to connect to any CO2 pH control system — including Hayward CAT controllers, Pentair IntelliChem with CO2 kit, and other brands. Standard CO2 tank connections and included hoses make installation straightforward.
Are CO2 tanks included?
No. CO2 tanks are not included and must be sourced locally through a CO2 gas supplier. The manifold is the switchover hardware that connects between two standard CO2 tanks and your pH control system.