Flot Posted April 9, 2010 Report Share Posted April 9, 2010 Due to a family emergency I had to leave my spa unattended for about 3 weeks. Prior to that I was using Nature2 with MPS and the occasional dichlor shock, spa gets infrequent (once a week or so) use and had been maintaining VG water quality with minimal maintenance, would check on things every 4-6 days and adjust as needed. Spa also has an ozonator in it. Anyway, get back after 3 weeks away and the water still looked clean and clear - however, lifting the cover I got a hint of a "sour" smell, almost a spoiled milk type of odor. Obviously I will be draining and refilling, it's been about 3 months anyway. In the meantime, I dumped in 2x the normal chlorine amount and will circulate that for a while. Is there anything else I should do? Am I better off overchlorinating it for a couple of days to ensure nothing funky is left in the filters/lines, and then doing the drain/fill? Quote Link to comment Share on other sites More sharing options...
PaulR Posted April 10, 2010 Report Share Posted April 10, 2010 Spa Decontamination Quote Link to comment Share on other sites More sharing options...
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