My friend fired up his homemade E&F system for a trial run tonight and the in-spout on one bucket has a leak. We used a fair amount of silicone around each side of the nozzle the first time and after the leak we added more to it and are going to wait for it to dry until tomorrow. Is silicone the best thing to use for leaks? Also, is the tub still usable or should we get a new tub?