I have a dripping faucet in an old house I bought. I checked out youtube videos on how to fix it but can't get passed the first step. Both hot & cold shutoff valves are totally stuck. If I try to forcefully wrench them shut, would I damaged something or cause a potential flooding under the sink? Any ideas on how I can fix this mess? Also, the faucet is an old Elger w/o caps I can pry open to access the bolts to take remove & replace. I'm pretty lost here. Please help! Thanks so very much!!!