john2049 Posted August 17, 2014 Report Share Posted August 17, 2014 Hey everyone, I am hoping someone could help me out here. My local pool supply store wasn't sure, so I thought I would try here. Thursday afternoon I emptied my hot tub, (routine) rather than fill it right back up I didn't fill it back up until the following afternoon. (I did leave the lid half off) As to be expected the syphon emptied all except for small leftover puddles in the seats, and the bottom floor. I don't know why, nor has it happened before, but heavy white residue was left in those spots. ( PIC: http://postimg.org/image/w1zzxabzj/ ) The hot tubs chemicals hadn't be tweaked (nor do I use a floater) in approx. 1.5 weeks due to business travel. I try rubbing this very ugly spots off when the rough side of a sponge before and after re-filling, but to no avail. I even purchased a liquid that is suppose to help stain and build up in the plastics that you put in when re-doing chemicals, but nothing thus far. Does anyone have an idea. I already miss the beautiful nice finish the hot tub had before all of this! Here is a link to view the spots left. Any help is greatly appreciated! http://postimg.org/image/w1zzxabzj/ Quote Link to comment Share on other sites More sharing options...
PreservedSwine Posted August 18, 2014 Report Share Posted August 18, 2014 I can't tell 100% from the pic, but that doesn't look like residue. If it doesn't wipe off, it appears to be chemical damage... you may have actually bleached the seats. This happens when the sanitizer you use is more dense than water, you use too much, and it accumulates in the lowest spots of the shell. Quote Link to comment Share on other sites More sharing options...
Markee Posted August 19, 2014 Report Share Posted August 19, 2014 What kind of spa is it? Looks like a rotationally molded plastic, not an acrylic spa. Quote Link to comment Share on other sites More sharing options...
Spa_Guru Posted August 19, 2014 Report Share Posted August 19, 2014 The easiest way to remove the residue, if in fact, it is residue, is to run your PH at 6.0-6.5 for a day following refilling the spa, if it is residue, it will dissolve. Usually the texture would be rough, but I can't tell from the photo. Quote Link to comment Share on other sites More sharing options...
john2049 Posted August 19, 2014 Author Report Share Posted August 19, 2014 What kind of spa is it? Looks like a rotationally molded plastic, not an acrylic spa. Correct, it is not acrylic. Quote Link to comment Share on other sites More sharing options...
john2049 Posted August 19, 2014 Author Report Share Posted August 19, 2014 The easiest way to remove the residue, if in fact, it is residue, is to run your PH at 6.0-6.5 for a day following refilling the spa, if it is residue, it will dissolve. Usually the texture would be rough, but I can't tell from the photo. yea, it is really hard to tell what it actually is. but that isn't a half bad idea. my fear is that it has been 4 days now since it has been there. and maybe too late. I guess we'll see Quote Link to comment Share on other sites More sharing options...
Spa_Guru Posted August 21, 2014 Report Share Posted August 21, 2014 I occasionally get service calls where spas have been sitting for years with all manner of residue on them, you can always get the residue off, but you can't put color back that no longer exists. Quote Link to comment Share on other sites More sharing options...
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