“Just installed my radiant system but without any venting. Spent hours trying to purge the air out with minimal success while listening to the cavitation in my new Taco X-Pump Block. Installed this dude and cavitation gone immediately, smooth quiet operation. Only complaint is the bottom port for the expansion tank is 1/2 npt, NOT 3/4 as listed in the specs. Simple solution but an annoying last minute trip to buy the correct fitting. Works great. Note: bottom port is 1/2 NPT.”
“Used this vent along with 2 Taco Hi Vents in 2 smaller 100GPM industrial closed loop cooling systems. Bottom line: there is no air or bubbles. If system is opened for service air is gone in 1/2 an hour. Don't have any 'cons'.”
“I ordered an uncommon Air Eliminator for my 5 zone gas furnace. I replaced a 5 zone manifold and other components but every 10 days I lost heat, or had reduced heat to the 2nd floor. Incomprehensible! I got tired of bleeding the air out of zone 5 and finally deduced that my very old Air Eliminator may have been malfunctioning. I installed the new from Plumbing Supply, which I received the very next day (after ordering just the night before) and it eliminated all my problems. Air-free for 1 month now. I've used them all and Plumbing Supply is the best. I will use them forevermore.”
