Hayward AQL-CHEM2 Sense and Dispense pH Dispense 120 V CO2 solenoid valveHayward Sense and Dispense pH Dispense, 120V Solenoid Valve for CO2, AQL-CHEM2 In stock$45999
Hayward AQL-CHEM2 Sense and Dispense pH Dispense 120 V CO2 solenoid valve
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Hayward Sense and Dispense pH Dispense, 120V Solenoid Valve for CO2, AQL-CHEM2

Ask a questionMPN AQL-CHEM2
$45999
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Quick overview

  • CO2 for pH opens to feed CO2, which lowers pH without anyone handling acid.
  • 120 V coil this is the 120 V version. A 240 V version is sold separately.
  • Part of Sense and Dispense the dispense half of Hayward's pH control, paired with the Sense and Dispense ORP and pH sensing kit.
  • Hayward AQL-CHEM2 listed under Hayward salt generator parts and automatic controls.
  • Alternative to acid for pools where an acid feeder is not wanted, CO2 is the other route. Hayward also sells a 120 V acid feeder kit.
  • Genuine Hayward UPC 761418009473.
Full description and specifications ↓

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Product details

The Hayward AQL-CHEM2 is the pH Dispense kit for Sense and Dispense, a 120 V solenoid valve that releases CO2 into the pool water to bring pH down. It is the dispensing half of Hayward's automated pH control.

How it fits in

Sense and Dispense reads pH through its sensing kit, and when the reading climbs above the set point the automation energizes this solenoid. CO2 goes in, pH comes down, the valve closes. The homeowner never handles acid and the pad never stores it.

Before you order

This is the 120 V version. Hayward makes the same solenoid in 240 V, so match the voltage to your equipment. You also need the Sense and Dispense ORP and pH sensing kit for the automation to have a pH reading to act on. If you prefer to feed acid rather than CO2, Hayward's 120 V acid feeder kit is the alternative.

Specifications
Brand Hayward
Manufacturer part number AQL-CHEM2
UPC 761418009473
System Hayward Sense and Dispense
Function pH dispense, CO2 solenoid valve
Voltage 120 V
Shipping weight 2.86 lb
Ships Parcel

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Customer reviews

Questions and answers

What people ask about this product, answered by our pool techs.

What does it do?
It is the solenoid valve that releases CO2 when the Hayward automation calls for a pH reduction. CO2 dissolved in the water lowers pH.
Do I need the sensing kit too?
Yes. This is the dispense side only. pH is measured by the Sense and Dispense ORP and pH sense kit, and the automation opens this valve based on that reading.
Is there a 240 V version?
Yes. This listing is the 120 V solenoid; the 240 V version is a separate part.
CO2 or acid, which should I use?
Both lower pH. CO2 avoids storing and handling muriatic acid on the pad. If you would rather feed acid, Hayward makes a 120 V acid feeder kit for the same system.
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