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Verified Reviews for Pool And Spa Servicing pros in Mandan, ND

*The Angi rating for Pool And Spa Servicing companies in Mandan, ND is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Pool And Spa Servicing needs.

*The HomeAdvisor rating for Pool And Spa Servicing companies in Mandan, ND is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Pool And Spa Servicing needs.

Last update on January 16, 2026

Find Pool and spa technicians in Mandan

Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

Heavenly Heat Saunas

3.20(
5
)

Heavenly Heat Saunas

3.20(
5
)
Customers say: Super punctual
39 years of experience

Heavenly Heat Infrared Saunas are made for the chemically sensitive. That means that our infrared saunas create an ideal, safe, and effective detoxification environment for anyone seeking to eliminate toxic substances from their body.

"I purchased a Heavenly Heat Sauna a few weeks ago . What I liked is you don?t smell any glues . I also liked its easy ( two man ) assembly. What I don?t like , in order to avoid using glues, they use pins or very thin nails. Some pins were missing and some were not beneath the surface. For the rough edges you?re provided with a small piece of sandpaper . Bot at a cost of over 5k you don?t expect to do sanding. My biggest complaint is that it takes almost an hour to get the sauna to 150 degrees. Definitely not worth the price. "

guy a on December 2025

Heavenly Heat Infrared Saunas are made for the chemically sensitive. That means that our infrared saunas create an ideal, safe, and effective detoxification environment for anyone seeking to eliminate toxic substances from their body.

"I purchased a Heavenly Heat Sauna a few weeks ago . What I liked is you don?t smell any glues . I also liked its easy ( two man ) assembly. What I don?t like , in order to avoid using glues, they use pins or very thin nails. Some pins were missing and some were not beneath the surface. For the rough edges you?re provided with a small piece of sandpaper . Bot at a cost of over 5k you don?t expect to do sanding. My biggest complaint is that it takes almost an hour to get the sauna to 150 degrees. Definitely not worth the price. "

guy a on December 2025

Avatar for American Tubs....

American Tubs....

2.33(
3
)

American Tubs....

2.33(
3
)
Customers say: Terrific value
14 years of experience

American Tubs designs and manufactures a complete line of premium quality Walk-In Bathtubs that are ideal for people with Limited Mobility, Seniors, Disabled and people with pain, arthritis, stress and other debilitating conditions.

American Tubs designs and manufactures a complete line of premium quality Walk-In Bathtubs that are ideal for people with Limited Mobility, Seniors, Disabled and people with pain, arthritis, stress and other debilitating conditions.

Avatar for Best Arq

Best Arq

No reviews yet

Best Arq

No reviews yet
18 years of experience

We are BEST ARQ, a design architecture online company in USA. We Can make all the design you need for pool, outdoor bar & grill, drywall sky, landscape, waterfall, wet wall, sky garden, addition house, guest house, and more. With a few info we Can make you a design of a Pool starting at $29.99 and a 3d model with render starting $69.99 high Quality. Try it now, if you are not happy get a full refund. We work with contractors, housewifes and people who needs a real and fast architectural design of high quality. Go Pro with us, any idea we design, dont pay expensive architect who doesnt do or know what you need. Our e-mail [email protected]

We are BEST ARQ, a design architecture online company in USA. We Can make all the design you need for pool, outdoor bar & grill, drywall sky, landscape, waterfall, wet wall, sky garden, addition house, guest house, and more. With a few info we Can make you a design of a Pool starting at $29.99 and a 3d model with render starting $69.99 high Quality. Try it now, if you are not happy get a full refund. We work with contractors, housewifes and people who needs a real and fast architectural design of high quality. Go Pro with us, any idea we design, dont pay expensive architect who doesnt do or know what you need. Our e-mail [email protected]

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Pool and Spa Servicing questions, answered by experts

Algae-related green hot tub water is generally safe to use, as algae aren't usually harmful to your health. However, if the conditions in the hot tub are hospitable to algae growth, they may also be hospitable to the growth of other types of microorganisms, including Pseudomonas aeruginosa, bacteria that can cause hot tub rash, or Legionella bacteria, which can cause respiratory illness.

It’s less expensive to leave your hot tub on all the time, though you’ll want to keep it at a reduced temperature. How much you use the hot tub is also a factor. You’ll want to keep it at a constant temperature between 80 and 95 degrees Fahrenheit for weekly or daily use, then bump it up right before you get in. If you don’t plan to use your hot tub that often, you can turn it off as long as there’s no risk of freezing.  

You should put chlorine in your hot tub on a regular basis. To keep bacteria away, keep the chlorine level in your hot tub at between 3-5 mg/l, which may mean you need to add chlorine daily or at least every two to three days. Don’t add chlorine to your hot tub water more than once per day.

If your hot tub is well-maintained, covered tightly, and the water is balanced and sanitized correctly, it can remain unused for up to two weeks without significant issues. Beyond this period, the water quality may start to deteriorate, potentially leading to the growth of algae and bacteria. However, it's crucial to note that this timeline can change due to factors like water temperature, sanitation levels, and the quality of your hot tub cover. Regular maintenance and water testing are essential to ensure the water remains safe and clean during periods of inactivity.

For a fully-foamed hot tub, freezing typically occurs when the temperature drops below 28 degrees Fahrenheit and remains at or below this level continuously for a minimum of 36 hours. If your hot tub and pumps are still operational, however, the water circulates, and this continuous movement helps prevent freezing, even in very cold conditions. This circulation, along with the insulation provided by the foam, helps maintain the water temperature and prevent it from freezing during extended cold periods. Still, if you’re not planning to run it regularly, be sure to winterize the hot tub properly to prevent damage from freezing.

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