Hi. So, I have a sink over cabinet. One day I've noticed water leak under the sink. After couple of troubleshooting, we found that the water was coming from the lift rod. Even a single drop of water to the lift rod will result a leak in the cabinet. Is a such design normal? Should we be more careful not to splash the water around lift rod? For temporary measure I wrapped a paper towel around the lift rod. Any input would be appreciated it. Thank you.