PinkFloydEffect Posted December 30, 2017 Report Share Posted December 30, 2017 Is it okay to add defoamer when purging a tub? I added an entire bottle of SpaPurge to a 200 gallon tub and it is foaming like crazy several feet off the water surface. Directions say to run for at least 5 minutes but I can only run it for 30 seconds once an hour when the foam dies down. Took 5 hours to run it a total of 2-3min. Finally I had enough and I added some defoamig solution which worked great but now I am wondering if I counteracted the Spa Purge and made it any less effective? Thanks Quote Link to comment Share on other sites More sharing options...
Cusser Posted December 30, 2017 Report Share Posted December 30, 2017 Wow - I've had a backyard spa for 29 years now and had never heard of a spa purge until today, had to look it up on Google and read up. I think you had no choice but to add some antifoam, and I doubt that a little antifoam will inhibit performance of any purge - without it you could not run the spa to mix through all the plumbing. So it's like Catch-22. I worked over 4 decades in the soap and detergent business, and sometimes even a small amount of "surface active agents" can cause foaming, like too much foaming in a dishwasher. After the purge, you likely need to drain and flush out with clean water a couple of times, and you still might need antifoam then still. Quote Link to comment Share on other sites More sharing options...
Purpleboy Posted June 5, 2018 Report Share Posted June 5, 2018 You can use cleaning defoamer with spa purge. It can fastly anti foam and improve the effect. Quote Link to comment Share on other sites More sharing options...
PinkFloydEffect Posted June 5, 2018 Author Report Share Posted June 5, 2018 What makes it "cleaning" defoamer? I have a bottle of regular defoamer on hand already. Quote Link to comment Share on other sites More sharing options...
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