Push-Paddle Automatic Stock Waterer

All 4 i bought leak. I had to dismantle each and every one to clean out the valves and reinstall to stop them from leaking. Poor quality control, and I had to buy new valves for 2 of them. One of the bowls had a hole in it which I had to patch or it would continue leaking. After everything is said and done I got them to work properly, but so much for a new product.