I am new to this forum and look forward to participating. My cub has been good to me so far so I haven't had to do much too it... Unfortunately, One of the self unloading hydro release valves on top of the hydro has sprung a leak out of the small hole in top. I cant believe they are $90 a piece! My question is...can I plug the small hole and put it back in use or will it make the valve malfunction? I was thinking of putting a quick weld right on it. I look forward to your advice...thanks, Chuck