Superdad Posted November 20, 2009 Report Share Posted November 20, 2009 This weekend, on my empty but contaminated tub (see Help: Living organism coating spa?) I am going to do a system flush (Swirl Away or Spa Flush), drain, then decontamination and drain, and then on third fill super-clorinate swim water for verification. My question is (On my D-1 Nautilus with 2 each 75 sq./ft. filters), do I keep any filters in the spa during the first step with the Spa Flush? If yes, then I guess I'll need to clean those (I usually soak my filters in diluted muriatic acid and pressure rinse) really well afterwards. But my instinct tells me that I do want any filters in during flush. (I am trying rid my tub of some unknown combination of biofilm and a lot of granulated calcium carbonate scale.) Please advise ASAP as I want to start the process Saturday morning (assuming UPS delivers my chems this afternoon). Thanks, ALEX Quote Link to comment Share on other sites More sharing options...
Parawood Posted November 20, 2009 Report Share Posted November 20, 2009 This weekend, on my empty but contaminated tub (see Help: Living organism coating spa?) I am going to do a system flush (Swirl Away or Spa Flush), drain, then decontamination and drain, and then on third fill super-clorinate swim water for verification. My question is (On my D-1 Nautilus with 2 each 75 sq./ft. filters), do I keep any filters in the spa during the first step with the Spa Flush? If yes, then I guess I'll need to clean those (I usually soak my filters in diluted muriatic acid and pressure rinse) really well afterwards. But my instinct tells me that I do want any filters in during flush. (I am trying rid my tub of some unknown combination of biofilm and a lot of granulated calcium carbonate scale.) Please advise ASAP as I want to start the process Saturday morning (assuming UPS delivers my chems this afternoon). Thanks, ALEX Alex, I would think you would want to start with new filters. Too much work to take a chance recontaminating the tub. Parawood Quote Link to comment Share on other sites More sharing options...
aschwartz Posted November 20, 2009 Report Share Posted November 20, 2009 This weekend, on my empty but contaminated tub (see Help: Living organism coating spa?) I am going to do a system flush (Swirl Away or Spa Flush), drain, then decontamination and drain, and then on third fill super-clorinate swim water for verification. My question is (On my D-1 Nautilus with 2 each 75 sq./ft. filters), do I keep any filters in the spa during the first step with the Spa Flush? If yes, then I guess I'll need to clean those (I usually soak my filters in diluted muriatic acid and pressure rinse) really well afterwards. But my instinct tells me that I do want any filters in during flush. (I am trying rid my tub of some unknown combination of biofilm and a lot of granulated calcium carbonate scale.) Please advise ASAP as I want to start the process Saturday morning (assuming UPS delivers my chems this afternoon). Thanks, ALEX Alex, I would think you would want to start with new filters. Too much work to take a chance recontaminating the tub. Parawood I also would highly recommend new filters. Contaminated filters will re-infect your spa. Quote Link to comment Share on other sites More sharing options...
Dr. Spa Posted November 20, 2009 Report Share Posted November 20, 2009 If you decide to keep the old filter, the answer to your question is "NO". take them OUT Quote Link to comment Share on other sites More sharing options...
Superdad Posted November 21, 2009 Author Report Share Posted November 21, 2009 Thanks everyone! Yeah, I got the chems this afternoon and the Spa Flush bottle says to run it without any filters in the tub. Hopefully my D-1 electronic brain will allow that. I have a clean and dry set of filters from before the contamination. That's what I'll use when I put the final water in. But I may put the old (but muriatic acid bathed and rinsed) set in during the mega-chlorination 2nd-fill for the decon step. And maybe I'll run the stored dry set in that high chlorine water (with the jets on high) for a while too. I don't think it could hurt and would be a good way to insure that the filters (which I have always taken good care of with soaks and rinses) don't have any living nasties. With filters at $70/set, and having just dropped a bunch on test kit and new chems, etc., I'm going to hold off on new filters for a little while. After I have some practice at the Dichlor/Bleach system, then I'll order new filters--and new neck pillows! Have a nice Thanksgiving everyone. I'll post again after the weekend once I see how my newly educated attempt at water balancing goes. ALEX Quote Link to comment Share on other sites More sharing options...
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