Since you cannot remove the "stains" with the methods you have tried perhaps the stains are from too much acid or high acid levels. Are there also copper colored stains as well? Do you have a pool heater in the system? If so, then it is copper stains from an acidic pool water. The over acid conditions are stripping the copper from the heater copper tubing. k
ma rainey's black bottom is about this stupid thing that happened over that really other stupid thing. the whole play revolves around this one woman that does absolutely nothing. the shocking end is not at all shocking.
Algae can appear at the bottom of a pool after shocking it because the shock treatment can kill off algae and other organic matter, causing it to sink to the bottom.
Try scrubbing with rubbing alcohol. Sometimes that works.
nothing :(
There is nothing.
nothing
You put the lower number at the bottom idiot you know nothing!
Nothing on a manual
No, nothing like it.
Absolutely nothing thats just how it started
nothing
The Triestes a Bathyscaph. In the 1960's I believe. But nothing has every been to the bottom of the trenches and came back.