Noticed that my air relief valve is leaking at the bottom and out the hole where the air/water escape, as shown in the picture. I am guessing that as a minimum I will need to replace the valve, but do you think I should replace the entire assembly?
Filter is 5 1/2 years old.
Keep in mind that if the leak is dripping out the end air vent hole, that the valve can get clogged with junk from the inside.. I've fix mine a couple of times by just blowing water backwards through the air vent valve..
I always make sure to blow it out when I clean the filter..
I had the same issue a couple of years ago. No matter how tight I tried to close the valve, water would still dribble out. I bought the $10 part you are referencing and that took care of it. Mine was at least 10 years old at the time.