mark0514 Posted August 9, 2012 Report Share Posted August 9, 2012 I recently picked up a used hot tub for cheap. After the move and install, I ended up replacing the controller/heater and fixing some leaks in hose connections. I got it up and running and two weeks later starting seeing black streaks that I thought were algae. After a couple weeks of battling (supposed) water battles, my son realized that where the spots are there are slight cracks in the acrylic. Now, I assume the black to be either mold, or something that was used to adhere the acrylic. How should I proceed? Do I need to repair the cracks (drill and route, patch) or just seal them and hope for the best? Quote Link to comment Share on other sites More sharing options...
Peggy-O Posted June 20, 2018 Report Share Posted June 20, 2018 On 8/9/2012 at 10:35 AM, mark0514 said: I recently picked up a used hot tub for cheap. After the move and install, I ended up replacing the controller/heater and fixing some leaks in hose connections. I got it up and running and two weeks later starting seeing black streaks that I thought were algae. After a couple weeks of battling (supposed) water battles, my son realized that where the spots are there are slight cracks in the acrylic. Now, I assume the black to be either mold, or something that was used to adhere the acrylic. How should I proceed? Do I need to repair the cracks (drill and route, patch) or just seal them and hope for the best? Hello - we're experiencing the same thing. Just wondering if other's replied and if you found a solution. Thank you. Quote Link to comment Share on other sites More sharing options...
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