Disclaimer: Non technical terminology to follow

I have a leak, precisely where HX connected to the boiler. So when running it from time to time I see water coming out of the bottom of the large HEX nut. I want to repair this , and had some questions:

1. I have to remove the brew pressure adjustment component, thus how to get the tubing off of the brass connectors w/out tearing up the tubing ? Should I use small flathead to pry the tubing off ?

2. I've heard 2 ways to seal connection for repair, lock-tite like spray and teflon tape. Anyone know of the preferred way, or both would suffice ?

Any help or references appreciated !

Find some Loctite Green (Loctite 290) at your local mechanic's tool shed.

http://www.google.com/products/catalog?rlz=1T4ACGW_en___US385&q=loctite+green&um=1&ie=UTF-8&tbm=shop&cid=13464666746104313412&sa=X&ei=tesETqHTOsfo0QH_qPXyCg&ved=0CDcQ8wIwAQ#

With the machine at room temperature, add several drops (maybe about 4) at the bottom of the large hex fixture where it screws into the boiler. You MAY be able to fit a small pin between the bottom of the hex fitting and the boiler and let the drop of Loctite travel along this pin. The idea is to get it on the miniscule amount of threading that may be visible and "wick" into the threading. Let it cure for 24 hours.

This is the easiest POSSIBLE remedy. If it doesn't work, we can go from there.