Is Your Boiler Gurgling or Locked Out? The Condensate Trap Could Be Blocked Modern condensing boilers are incredibly efficient, but that efficiency creates a byproduct: acidic wastewater known as condensate. Under normal conditions, this water simply drains safely away. But when a blocked boiler condensate trap stops the waters ability flow away, it can cause … Continue reading Blocked Boiler Condensate Trap: Why Your Boiler is Locked Out