Dirt floating in cold water tank

Discussion in 'Plumbers' Talk' started by Big John, Jan 13, 2021.

  1. Big John

    Big John New Member

    Someone left the cover off my cold water tank in the loft. The water surface is covered with white powder and other fine debris, floating. The bottom doesn't look too clean either. I could clean out the bottom easily enough with a siphon hose, but I if use that to clean the floating stuff off the top, won't air go up the tube and stop the siphon working? Any ideas? It's a 77 gallon asbestos tank.
  2. kiaora

    kiaora Screwfix Select


    it may be time to replace the tank for a new one that has the kit to comply to the regs, sealed to avoid any bugs or little creatures getting in.

    you can leave the old tank for storing if it’s difficult to get out, not a good idea to break it up.

    it's probably a job for a competent diy, not for a beginner though’.

    good luck

  3. Big John

    Big John New Member

    Agreed, kiaora. When my income returns, after coronavirus, I'll be looking to do that. In the meantime I just need to clean it up and put the cover back in place.
  4. terrymac

    terrymac Screwfix Select

    Raise the water level in the tank to the overflow spillover level , anything floating should run down / out the overflow...if your lucky.
    Severntrent, Big John and kiaora like this.
  5. Big John

    Big John New Member

    Thanks, I like that idea. I'd better check out the overflow pipe first...
  6. terrymac

    terrymac Screwfix Select

    That would be wise John !!!
  7. Mr John Melvin

    Mr John Melvin Active Member

    Just in passing (ex plumber 50 years ago Lol )
    I had my system changed to a COMBI 5 years ago
    An INTERGAS 30/35 works well
    I had all the F/R pipes removed and the ELSON tank.
    Yes popular a long time ago lol.
    A neighbour of mine decided to leave the unused Elson still in the loft
    as it may make to much mess to have it removed ???
    It will dry out in time but is it wise to leave them.
    Will they not be a "dirty" in the bottom or buggy or smelly in time
    I only fitted them never took out.

    Johnny M

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