Installation Order of Components:
Install the components in the following order. They are ordered starting with the upstream direction. Only J
System Components are included in this section.
1. Manifold water supply 'Tee' or saddle
2. Water Meter
3. Injection Point Fittings
4. Blend tank
5. Sensor loop (if applicable)
Installation Considerations:
• Install the injector system in a bypass. This allows the injector to be isolated for service while allowing
the water line to continue to supply water.
• Ensure all water to be treated flows through the water meter. The injector system will not function
properly if only part of the water flows through the water meter.
• Install unions on each side of the blend tank so the tank can be replaced or re-situated without
completely redoing the plumbing.
• If the stock solution tank is large, install a smaller “day tank” to supply the injector. In case of a
malfunction or leak the amount of chemical spilled will be reduced.
• Any on-off water valve should be installed downstream from the blending tank. This will insure that the
system injection point will always be pressurized, making siphoning of chemical unlikely.
• Suction lines may be plumbed with rigid PVC piping for a neater installation.
• Read the specific installation guidelines for your exact water meter. Different types of water meters have
different installation requirements.
• Check local codes for back-flow prevention requirements.
• Captive air tanks are recommended to reduce damage caused by water hammer.
• Injection point fittings can be installed up to 45º from vertical. See pumper manual for more information.
• The injector can be installed into several different pipe sizes. Consult a professional plumber or irrigation
service to determine proper size for your application.
EC and pH Monitors
• Install EC and pH sensors in a three valve bypass loop so they can be isolated for service.
• In the bypass loop for pH and EC sensors, the sensors are installed below water line to ensure they are
never dry and to reduce contact with air in lines.
• In the sensor bypass loop, partially close the main line valve so some water flows past the sensor.
• Install a boiler drain on the sensor bypass loop so samples can be taken and so pressure can be
relieved when servicing sensors.
• NOTE: Do not let the pH probe become dry. If the pH probe is allowed to dry out it will be damaged and
no longer function properly requiring replacement.
Location & Access
• The injector should be out of the way, yet accessible
• If your water supply is from a municipal or public water line, you should comply with local codes.
• If your watering system is connected to a public or potable water source, a backflow preventer should be
installed so that no backward flow of treated water into potable supplies or public mains can occur.
Contact your local water authority for approved devices and recommendations to insure that your
installation meets their standards.
• Install the system neatly and with room for easy maintenance access.
Environment
• Freezing can cause expensive damage, even during storage if the measuring unit and pumpers have
not been properly drained.
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