[Chester Stone]

For several years I have had a small fluid leak where one of the HWH solenoids connects to the HWH fluid block.  I recently cleaned the area and placed an pad under the system.  There seemed to be no leaks when the slides were retracted, but this solenoid leaked when the slides were extended.  I am not familiar with how these solenoids are attached and if it can be tightened to stop the leak.  I will appreciate any suggestions.