I am getting small bubbles through the inlets. Noticed when I shut off the pump, water squirted out between the top of the basket strainer and the strainer body. I took off the top, cleaned both surfaces real well, put in a new, well lubed O ring and the same thing happens - bubbles and squirt through the area the O ring seals the top to the body. Could the plastic top of the basket strainer be warped ? It had been really wrenched down with pliers. Any thoughts ? Thanks !