Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit

Electolysis in Solar Storage

solsean Member Posts: 17
Saw this years back but the electrolysis went after the walls of the tank. The original installer used dielectric unions back in '97 and they have formed quality stalactites. Looking for any suggestions on how to get whats left of the unions off of the stainless nipples.


  • hot_rod
    hot_rod Member Posts: 15,004
    you may have to carefully split them with a fine tooth hacksaw

    What type of fluid in the tank? Water with high conductivity, like softened water accelerates electrolysis

    I’d re assemble without dielectric unions, they tend to cause more problems
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Looks like a rotisserie chicken. Yum!
    Often wrong, never in doubt.
  • Gordy
    Gordy Member Posts: 9,514
    edited October 2018
    Die grinder with cutting wheel to split them.

    Well done rotisserie chicken :D
  • solsean
    solsean Member Posts: 17
    The plan is the grinder. The tank fluid is water at 0.20-0.22 EC. There will be no unions if the system gets rebuilt.