We started trying to care for our pool ourselves this month. Pressure gage was broken. So we changed it. The old gage wasnt tight in, so when we put on new one and it wouldn’t be tight we didnt think much of it. We used teflon tape but it just kept turning. We statted the filter and there some leaking around the gage. It wasn’t leaking before. It almost seems the thread on the filter part is gone. How do I fix that??