Dave987
New Member

I'm trying to change the hose under my sink since there is a slow drip. I don't have a typical water shut off valve. I'm assuming the square inside the cylinder is it. If I'm wrong please correct me. I bought a 5/16in sillcock key which fits, however I can't even turn it. Am I using the right tool? Is this not the water shutoff? Any help would be appreciated. Thanks.