Hot tub water was clear then I added shock. It turned a clear green. What happened and how do I fix it?
Hot tub water turning translucent green after adding Shock
- Thread starter Melhenderson6357
- Start date
Can you be more specific about what chemical you added? "Shock" could mean just about anything.
This is a classic example of metals in your water (iron or copper most likely), the question then becomes how did it get there. The answer is either in your fill water or through something you put in the tub. Many algaecides contain copper, so do many mineral systems, if you can tell us more about how you care for your tub we may be able to isolate how this likely happened.
- Jul 3, 2013
- 9,028
- Pool Size
- 15000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool SJ-40
Welcome to TFP 
Yep, that real pretty bright green usually means metal in the water... Could you update your signature with your spa/equipment, it makes it easier to help
also, is you fill from a well?
Trouble Free Pool
Yep, that real pretty bright green usually means metal in the water... Could you update your signature with your spa/equipment, it makes it easier to help also, is you fill from a well?
Trouble Free Pool
Welcome! 
Emerald green would point to Copper. Sickly green is more likely Iron. Pool School - Metals in the Water and Metal Stains
Emerald green would point to Copper. Sickly green is more likely Iron. Pool School - Metals in the Water and Metal Stains
If you're on well (and I suppose even if not) Metal Gone spa metal sequestrant will clear iron tint for sure, with maintenance dosing of Metal Defender. (It what I use in the hot tub and my raw well water has 2 ppm iron. I also started using a Prefresh Filter last season, which helps to a degree IME.)
But if you're not on well, and there's no metal in your source water, changing the water might be the solution.
But if you're not on well, and there's no metal in your source water, changing the water might be the solution.
Thank you all so much for the quick responses!!! I will update my signature with our pool/spa specs and equipment too. The "shock" we used was not chlorine, it was specifically for hot tubs, but I don't have the name of it to memory. I believe it's just simply time to change the water out as it's new to us, our 1st tub to own, and we've had it going since March, and have used it often. So happy to have a positive feedback website to post & get info from. Thank you!!!
Is it "Spaguard Brominating Concentrate"? (Dichlor and bromide)
I have a container of that and I think that's what has been turning my spa green too. Does it happen right away when you add the sanitizer? You can search my earlier thread on my green spa...
Marc
I have a container of that and I think that's what has been turning my spa green too. Does it happen right away when you add the sanitizer? You can search my earlier thread on my green spa...
Marc
If this is your first hot tub and you just bought it you may want to read How do I use Chlorine in my Spa (or pool)? and Used Spa
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