My pump leaks when it is running not sure what seal it might me only leaks when it is runnning it is #03600009090048f. Thanks
Roger - If your Pentair Optiflo pump is leaking, we would recommend replacing the shaft seal and body o-ring. The shaft seal is part number 5250-104. The body o-ring is part number 5069-03A.
You can view all of the items on our Pentair Optiflo parts page.
Thank you for shopping with Inyo!