OK, Perhaps I didn't really mean 'sealed', I guess. Covered so that dirt
doesn't fall into it. A lid, I guess. Possibly something to conform to
regulation ???30? Oh, and it is not coffin type, more a bathtub.
Originally it was surrounded by 'black plastic bin bag with insulation
inside - but that has long since disintegrated.

GOG

"NT" wrote in message
...
On Jul 7, 3:06 pm, "GOG" wrote:
My 50 gallon black plastic loft 50 gallon cold water tank has become
serious
distorted, over a period of, possibly, 20 years. The 'stress bars' holding
the two long side together were displaced, so that the tank bulges at the
top, making it difficult to seal the top (there was no 'top' that I ever
knew about. I has been opined that it would be impossible to draw the
distortion back. Now, I wonder about this since 50 gallons of water
flowing
out of a tank in the loft, could cause serious damage. Does anybody have
any ideas as to how to bring it back into shape, or otherwise?

Thanks in advance,

GOG

empty it, then add a frame round it. They're not meant to be sealed.