Originally Posted by
57vert
I am replacing the current 3" bottom drain and drain pipe with a 4" drain and pipe on my rubber lined pond. This is a preexisting pond 3500 gallons, 15 years old. I am struggling with whether to get a built in diffuser. I like to keep things simple and afraid if something goes wrong with the built in diffuse it will be a pain to get to it and the air line. I currently have an external diffuser, but having the line drape over the edge of the pond isn't the prettiest looking, but I've dealt with it for 15 years now. Am I being overly cautious and worrisome?