broberts Posted June 13, 2023 Report Share Posted June 13, 2023 we are finding very fine black debris in our tub. we run with bleach and keep a close eye on the pH which is normally about 7.5 the debris is not coming from our feet or overhead so I think the most likely source is corrosion of the heater element itself. I don't think there is anything else in the plumbing it can come from. Its a 3000 watt in a Balboa system. No salt in the water Any comments please ??? Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted June 14, 2023 Report Share Posted June 14, 2023 https://www.poolspaforum.com/forum/index.php?/topic/53695-black-dirt-ring-around-water-line-recently-showed-up/#comment-209218 Not sure if this helps you. O-rings deteriorating can also cause issue. O-rings around valves and pump/heater unions but can be hard to trace. Quote Link to comment Share on other sites More sharing options...
broberts Posted June 26, 2023 Author Report Share Posted June 26, 2023 The source is not found yet ... that means the heater is still working,, but I fished out some of the particles and they are magnetic. It may be time to order a new heater element. Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted June 26, 2023 Report Share Posted June 26, 2023 @broberts Did the spa ever have a "salt" system hooked up? What brand of spa is it Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.