Cleaning a Jet Tub?

3 years ago I bought a home that had a jet tub. I was told the jets didn't work and the previous owners never used them. They lived here for 2 years. So including their time living here, the jets haven't been used for 5 years for sure. I recently got them working and as you can imagine... black funk everywhere! I have been cleaning it now for the last 3 days and so far have run the the following cleaners through it: vinegar, dish soap, bleach, and Natural Chemistry Spa Purge. I also removed all the jets, soaked them in bleach and water and scrubbed them clean.


The most recent and last rinse is the cleanest I've seen it yet, but still there was a very small amount of little black flakes. How to I completely get rid of them? Is it even possible? I cannot use this tub with even 1 flake and am about to have it taken out if there's no way to totally clean the system. Any help or advice?

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Gold Post Medal for All Time! 677 Posts
March 29, 20180 found this helpful
Best Answer

You can use a combination of low-sudsing dishwashing detergent and bleach. Instructions are

March 30, 20180 found this helpful

I've done this already! I dont know if it just needs a lot of rinses. But my husband is going to kill me when the water bill arrives.


hahaha. I've filled it a minimum for 15 times in 3 days already


Silver Feedback Medal for All Time! 451 Feedbacks
March 30, 20180 found this helpful

michellemcavoy1, I hope you can find a way that works as I have the same problem.

A few years ago, I was filling the bathtub with water and bubble bath, then after I got in and I turned on the jets. Well I always take a bath "by candle light" as that to me is the most relaxing, then I drain it.

Well, in the morning, I had a shocking surprise!

Because now, (morning) it was light and bright, I looked in the bathtub - actually the bathtub caught my attention by all the black flecks that were coated on the bottom and sides of the tub from the "jets".


I realized I had taken a bubble bath in all that black muck (or mold flecks) that had been inside the jet holes, and to this day, I've still not used "that bathtub" because it was the grossest thing ever, and to realize I was soaking in that. I'm actually afraid to use it now in case something is still lodged deep inside those jets.

I do wish you luck, and please let me know if what you do to remedy it, works, as I've still not used mine for at least 5 years.

Thank you.

March 30, 20180 found this helpful

Ohhhh myyyyy! I can't even imagine, I think I would have died when I seen that in the morning, what a sin! But yes,
I am still on the hunt for another product because none of the regular stuff people recommend has worked as well as the spa purge liquid doesnt leave me feelin very confident that it did anything at all.


But like you I can't get in, I'm terrified also! I will definitely update once I find something (if I do)!


Diamond Post Medal for All Time! 1,298 Posts
March 31, 20180 found this helpful

Oh no! I am scared to turn on the jet tub here!

There is a form here that recommends some products & methods to clean:

I hope this helps you!

April 30, 20190 found this helpful

I had the same issue with the little black flakes, when I moved into a house (built 2006), and a jacuzzi style tub. It's hard to say what the composition of these are without a chemical analysis,but as vinegar (acetic acid) didn't affect them, so unlikely to be calcium carbonate buildup. I also didn't think they were mold, as bleach didn't affect them. that is not to say, that for someone else's situation, it would be the same as mine, and to solve it, feel each person must do their own experimental approach - what works for one may not be the answer for the other. Another possible cause, which I was strongly considering, is that there may be rubber (or similar) fittings in the plumbing, e.g., where the pump motor is connected to the pvc piping that goes to the jets. So here is my approach, and what ultimately worked for me: IFirst I tried dishwasher detergent, then white vinegar, then bleach,(each separately, not together! - running the jets, letting the water stand in the tubs (and in the lines) for a few hours or even days, even, running them again, and finally draining the tub). and while the number of the flakes seemed to decrease, I could not get rid of them, always some would come back.


I finally bought a cleaner specifically for this issue (can be found at Lowes for ~ $7) - and still the flakes came back. I finally decided they are from deteriorating seals in the tub plumbing, and leaving the cleaner I bought in the tub (not draining), huge waste of water!), I continued to run the jets every day periodically for about 1/2 hour, and... made a screen from an old pair of panty hose and a hanger (you could make one from cheesecloth, or perhaps buy a fine mesh screen) - and started scooping it through the water, and collecting the flakes. less than a week of this procedure, and finally flake free! however, this is not to say they won't reappear, but I have kept the screen, and will just check before use. I do think that in my case, it is the fittings that may be slowly deteriorating, and don't think it would be an impossible job to replace them, if need be. So in short - if you have the same issue with these flakes - try the commercial cleaner, and strain them out by hand over several days time - and let us know it it works for you! hope so!

April 16, 20210 found this helpful

I wouldn't use bleach. It can corrode the system. Also, the hot water vaporizes and inhaling bleach into your lungs can't be good! I'd recommend a cheap specialty solution. Zero Bull's jetted tub cleaner works for us.



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