Installing the Chemistry Sensing Flow Cell

Materials Needed for Installation

• PVC pipe cutter or hacksaw
• PVC primer
• PVC glue
• Silicone lubricant (for O-rings)
• Flathead screwdriver or ½” (12mm) socket — for removing winterization plugs from the chemical feed port, pH probe port, and ORP probe port (if these ports will be used)
• Any additional items required to comply with local codes

Before carrying out any part of the installation, you MUST power down The Attendant controller and all filter pumps.  Powering off pumps will relieve pressure from the pool filtration system.

If you will be using Poolside Tech pH and ORP sensors in the Flow Cell – DO NOT USE TEFLON TAPE ON THE THREADS OF THE PROBES.  

What’s In The Box

• Flow cell body
• Drain cap
• 2″ PVC unions with O-rings
• Acid dosing fittings
• pH and ORP sensor plugs (pre-installed — save for winterization)
• Acid feed port plug (pre-installed — save for winterization)

Installation Instructions

Flow Cell Placement

Install the flow cell after the filter and before any chemical dosing equipment, including:

• Salt chlorine generators
• Chlorine feed pumps
• AOP units
• Ozone systems

Refer to the schematic below for recommended placement.

Note: If you plan to add the Poolside Salt Chlorine Generator cartridge to the flow cell in the future, we recommend placing the flow cell just before any existing chlorine generators.  This will make it easier to remove and upgrade later.

Flow Cell Plumbing

• You’ll need 12 inches (30.5 cm) of straight pipe for installation.
• Ensure the flow cell is installed with the cap facing upward.

1. Use the included template to mark the required cut: 7 ⅝ inches (19.3 cm).
   
2. Cut the pipe at the marked points using a hacksaw or PVC cutter.
   
3. Slide the union barrel nuts onto both ends of the cut pipe, ensuring correct orientation.
   
4. Apply PVC primer and glue to the pipe and union collars. Slide the union collars into position and hold them until bonded. Follow glue manufacturer’s curing instructions.
5. Apply silicone lubricant to the O-rings and seat them into the flow cell grooves.
   
6. Hand-tighten the union barrel nuts onto the flow cell.
   

Once the plumbing is complete, you can proceed with installing the pH and ORP sensors and the acid injection fittings.

Reminder: Keep all plugs that came pre-installed in the acid and sensor ports. You’ll need them later for winterization.