In my overflow box I had the emergency and main. But the main was louder than it should. A friend of mine said I can replace the pipe with a strainer as in the picture and once I did that the level went up and down in my overflow. When the water goes up to emergency and flows in it’s dead silent but isn’t that just for emergencies…. Or is it okay that it’s slightly flowing into the emergency drain…… when it goes lower you hear the water from the box inside tank overflowing into the overflow. Adjusted gate valve and return pump and it just keeps going up and down. Should I just cut the pipe that was originally there shorter then add the strainer then put it in?
help
help