Install the Spirovent® at the point of lowest solubility, which is the place in the system where the temperature is the highest and pressure the lowest. Note as well to always "pump away" from the expansion tank, never towards it.

Related Work

International ALERT Academy, Big Sandy, TX

“I have not had to vent a coil in the three months since

Waukesha Memorial Hospital
The Spirovent was selected and installed to prevent dirt and sediment in the existing system from reaching a new addition and improvements went even beyond that.
Industrial Gallery
Spirovents have been installed in many new and existing industrial HVAC systems.
Mosinee School District - Mosinee, WI
“We couldn’t get the chilled water supply temperatu