If you take a look at step 7, I've cut a trap door into the hardware cloth so I can "open" up that section and reach my hand into the basin to retrieve the pump. This makes it easier to take the pump out in the winter and to do any servicing you may need to do. If you didn't cut a trap into the hardware cloth, you'll have to remove all of the rocks/stones, then take off the hardware cloth and grill to retrieve the pump. So, thinking ahead and creating that trap door can save you a lot of time and effort in the future!