Fantastic website. 1. Main water shut off valve for the house is hard to turn, will close off 99% of water when turned hard. The valve and pipe are half buried in stucco, such that replacing the valve is major problem. Any ideas on how to make the valve easier to turn? Would it be possible for me to remove the stem, take it to a plumbing supply place and buy a replacement?2. Toilet water supply valve will not pass water when open, after I replaced the ballcock. I did have to force the plastic hose into place after putting in the ballcock — possibly I damaged the valve by forcing the plastic hose into it? I disconnected this plastic hose from the bottom of the new ballcock, turned on the water supply valve expecting a shower — nothing. Now when I pull the plastic hose only part way out of the supply valve even with this valve shut off, I get sprayed. Any ideas of my replacing the stem here? Sorry for the long email, but have been under the toilet for an ! ! hour, and really appreciate any help. Thanks much. Eric