Re: Stains or Discoloration in Plaster Pool on CLoudr or Overcast Days
One way to find out if the stain is from metals or from organics is to get some vitamin C tablets, crush them up and put them in a sock, place the sock on the stain. If the stain disappears, it is from metals. If not, get a chlorine (powder or break up a puck) and do the same, if it disappears, it is from organics. If neither of these work it may be that the plaster cured differently in some spots. That would be something to take up with your builder.
Northeast PA
16'x32' kidney 16K gal IG fiberglass pool; Bleach; Hayward 200lb sand filter; Hayward pump; 24hrs; Pf200; well; summer: none; winter: mesh; ; PF:7.5
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