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Titanium Heater Elements and Ozone Seals

March 11th, 2011 by

Some spa and hot tub manufacturers are offering Ozone generators and/or Salt Water systems to sanitize the water. Although beneficial to water quality, salt and ozone can be detrimental to equipment like standard heater elements and standard pump seals.

To combat this I suggest you use Titanium heater elements and Salt/Ozone pump seals; which are more resistant than the standard versions to the corrosive effects of ozone and salt.

Flothru Heater Element

These heater elements are more expensive, being made from Titanium and all… but if you’re replacing a standard element every 1-2 years, there can be a quick payback in a few years. The ozone grade pump shaft seals are only a few dollars more than standard grade.

So, if your spa heating element look deteriorated and corroded, and you use salt and/or ozone to sanitize, my recommendation is to replace with a version that can withstand the salts in the water.

If your shaft seal is failing, and you use ozone in the water, look for a softening and puckering of the rubber portions of the shaft seal, or possibly corrosion on the spring portion.

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8 Responses to “Titanium Heater Elements and Ozone Seals”

  1. Bonnie B says:

    I heard salt water hot tubs are difficult to maintain and often break. Is there a way to prevent this?

  2. Jerry says:


    I have a hunch you may already know this….

    In the past all salt water hot tubs have failed. Sundance Spas and Bioquest ( a company which sole purpose was to sell these systems) both failed after years and many thousands of dollars. The new systems today may work, it’s too early to judge. We have seen some heater failure already and hence we are suggesting a Titanium Heater which will not fail from corrosive salt water.

    Hope this helps.

  3. Nick says:

    I never realized that the ozonators cause the heaters to deteriorate at a quicker pace. Thank you for the information, I will definently use it to help customers in the future understand the issues they are having with their spas and help them resolve heater issues in the future.

  4. Yes, the Nacl water can be corrosive. If you are shopping for a salt system. You pay for what you get, so if you find one that is ridiculously cheap or visa versa to others in comparison, make sure you ask for the Salinity Comparison or just look how much Nacl (salt in) converted to HOCl (chlorine out) in PPM (parts per million).. The ocean is around 35,000 ppm. The human taste sense can detect salt of about 5,000 ppm. And remember with good salt generators you shouldnt be tasting salt when swimming or lounging in water protected by a salt system. Which is a highly common misconception. so look and see how many ppm there is being converted. A good one will be around 1500 -2500 ppm on average.. no lower than 1500ppm though. So if you do have sensitive skin, and cant use my mineral sanitizer primarily activated by a tiny dichlor amount, (hot tub chlorine) and then maintained it so by using oxidizing shock, which is NOT CHLORINE to keep the mineral sanitizer activated and working; THEN, i highly reccomend shopping around for the right salt system for you.

  5. Jerry says:

    Thanks for insightful post. We agree with your comment ” mineral sanitizer primarily activated by a tiny dichlor amount, (hot tub chlorine) and then maintained it so by using oxidizing shock, which is NOT CHLORINE to keep the mineral sanitizer activated and working;” as being the best choice of methods for a hot tub. Pools are much better suited for a Salt System due to volume of water and temp of water.

    Again, thank you for the smart and insightful comment.

  6. Amanda says:

    Great information. I really appreciate the information!

  7. Jack Stone says:

    Thanks for the feedback. We like your site too.

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