I've got double sinks in my kitchen. The metal drain pipe under the left sink, which I rarely run water thru, has a hole in it. It's about 1/8" x 3/18". In light of what's happening in the world today, I prefer not to have anyone in the house until this whole covid 19 pandemic is over. What's the best temporary fix for this. I don't plan on running any water, but my dish drainer is on that side so there is some water that may trickle thru. The pipes are about 20 years old, so should I have them all changed over to PVC when I get someone in to fix the leak? Thanks.