Bromine or Chlorine?

by Carol
(Mcdonough, GA)

Which chemical is easier to maintain and balance? I have a continuance problem with Hot Tub Rash and I check and re-adjust the water on a daily basis if needed.

Thanks for the question Carol

Chlorine is a good sanitizer and has been around for many years. The thing about chlorine is that it does tend to break down quickly, especially if there's no cyanuric acid/stabilizer. It also will break down quickly at higher water temperatures.

With hot tubs, many people go with bromine. It resists higher temperatures and is as good as chlorine to disinfect your hot tub.

It's also a good alternative for those who might be allergic or have an irritation to chlorine.

The proper level for Bromine for a hot tub is 3 - 6ppm.

Bromine comes in tablet and granular form. You can choose which one is better for you.

To post a reply, or if you have a similar question, you can see your post on the Q&A page in the "Hot Tub/Spa Questions" category.

Swimming Pool Questions & Answers

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Hope this helps and have fun with your hot tub.


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Algecide 40 In My Hot Tub

by Justin

My brother in-law put two cap fulls of algaecide in my hot tub. I drained it down and now I'm refilling it.

It has strong odor still. Do I need to redrain it?

Please help.......

Thanks for the question

It would be good to know the kind of smell you're referring to. Many times a smell from a hot tub will indicate something is wrong. This is normally due to improper sanitation.

A musty smell can be from inconsistent bromine use while a dirty sock kind of smell can indicate bacteria. White water mold is an issue with many hot tubs due to the increased temperature:

Water Mold

If you're going to use an algaecide, I'd recommend a PolyQuat 60. This has no metal fillers unlike other cheaper and less expensive algaecides. An algaecide 40 contains Alkyl dimethyl benzyl ammonium chloride (C12-16) and tend to foam.

A PolyQuat 60 has "Poly{oxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene dichloride}".

If you're concerned about the smell the best thing is to do a drain and refill. Be sure to clean the filter well.

If you would like personal assistance, I do phone consultations for a donation of your choice. It makes things go much faster.

If you choose to not go that route, we can correspond by email.

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Hope this helps and have a great Summer.


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Waterpark water...

by Lori
(St. Catharines,Ontario,Canada)

7 yr old son

7 yr old son

After spending 6 hrs at an indoor waterpark, my son started to break out in this rash which has now covered 70% of his body in 3 days since that excursion.


Thanks for the question Lori

Without doing the proper tests it's hard to determine with any degree of accuracy as to why your son has this rash. I'm not a doctor and can only speculate as to the reason.

It could have been the water at the park but without testing the water it's difficult to say.

It may have been either too high chlorine which can cause a rash, a chlorine allergy, or possibly too low chlorine. This is common with water parks as they must pump in massive amounts of chlorine to keep the chlorine level between 3.5 - 4.5ppm.

The pH may have been low, below 7.2 which can also cause skin irritation.

Being it's a water park pool, it might be considered a commercial pool and would be routinely tested by the state department of health. My understanding is commercial pool records should be available upon request.

You can ask to see the daily adjustments they make and if they don't readily release them to you I'd ask why. This has always been a big red flag for me when commercial pools don't release their records upon demand. If they're doing everything right there's no need to not show them to their guests.

You can also check with the local Department of Health to get the pool records.

To post a reply, or if you have a similar question, you can see your post on the Q&A page in the "Waterborne Illness" category.

Check back to this post for updates or answers.

If you need immediate assistance (within 24 hrs) or for emergency personal assistance, you can make a donation of your choice and I'll answer your questions by phone.

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Hope this helps.


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Tiny Soft White Specks In Hot Tub

by Brad

Little white specks in spa about the size of salt grains. I've done the bleach test but the specks remained. I also mix 8 ounces of water with a tablespoon of shock no results I've also done 8 ounce test with CLR and PH down no results. water chemistry is good. I don't know what to do everyone wants to keep selling me more products to try :( my water is very hard.

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