You might need to redo the diaphragm. I make my replacements out of a thick rubber roof material, about like inner tube. Get the old one out, use it for pattern, make the proper holes in it and put it back together. My pump has a couple hidden bolts that are a little difficult to find. A .38 and .22 shell works quite well to cut the holes.
I admit to being powerless over housecleaning and social niceities
Airforums 22655 and now, WBCCI 22655