Why does my hot tub feel slimy?

• <div><p>Biofilm growth can cause a hot tub to feel slimy. Hot tub biofilm is a slimy substance that’s typically due to natural contaminants like makeup, soaps, skin oils, deodorants, or lotions. A hot tub can also have a slimy interior or slimy water if the tub’s filters are old or damaged, or if the hot tub isn’t properly cleaned. You should drain your hot tub, wipe away any slimy residue, then refill the water and use a spa purge product that prevents the buildup of biofilm. </p></div>

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Q: Do you need antifreeze to winterize a hot tub?

• <div><p>When your hot tub is completely dry, there is typically no need to introduce antifreeze into the plumbing. However, if you desire an extra layer of protection against potential freeze damage, you can consider adding some RV antifreeze to your hot tub lines. Just ensure that you use RV antifreeze specifically, as automotive antifreeze is highly toxic and should be avoided.</p></div>

Q: What should you not put in a jetted tub?

• <div><p>Using bubble bath, bath oils, bath salts, or moisturizing products that contain butters or oils can damage your jetted tub. Because of the water pump and jet mechanism, you need to be more selective with products for a jetted tub than you would for a traditional bathtub in order to keep it functioning properly and avoid expensive repairs. These products also leave residue that can feed mildew and mold, so it&rsquo;s best to avoid them.</p></div>

Q: Can you use silicone to repair a hot tub?

• <div><p>Yes, you can use silicone or epoxy hot tub repair kits to repair cracks in a hot tub. Always read the manual to see what the manufacturer recommends before attempting to repair a hot tub.</p></div>

Q: What are the cons of owning a hot tub?

• <div><p>Though a hot tub has many benefits, there are a few cons. Mainly, hot tubs require a lot of maintenance. You&rsquo;ll need to deep clean yours quarterly, test the pH at least once or twice a week, and add sanitizing chemicals once a week. They also have relatively high ongoing costs since you&rsquo;ll need to pay for electricity and repairs. </p></div>

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Verified Reviews for Pool And Spa Servicing pros in Boulder, MT

*The Angi rating for Pool And Spa Servicing companies in Boulder, MT 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 Boulder, MT 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 March 20, 2026

Reviewed in March 2026
Very polite. Completed the job quickly, did a quality job and cleaned up before leaving.
Smith Construction, Inc.
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Reviewed in December 2024
If I could give them 10 stars, I would. Communication, service, quality are all built into this company. You might pay a little more but you get a lot more too. No detail left out. From design to install. My only complaint is how long it takes to get the windows. Be prepared for 5 to 6...
Renewal by Andersen of Montana
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Reviewed in August 2024
Great people to work with, family business, trustworthy, did an excellent job ripping up and replacing our driveway. They completed the job in one day and without any issues. Attention to detail. Highly recommend them and you won't have to worry about the quality of the job they'll do.
Ted's Asphalt Repair
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Reviewed in November 2022
Nathan is an excellent worker who works speedily and professionally. He replaced our dining room and bathroom floor and did such an excellent job that we want to hire him back to do our kitchen floor!! I would recommend Nathan to anyone!!!
Freedom Flooring
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Reviewed in July 2022
Great! Coby was very helpful, explained things well, was punctual and friendly!
DaBella - Missoula
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Reviewed in October 2021
Royal Construction managed a 6000 sgft Unique Log Home construction and finishing, inside & out, over multiple phases. Shane & his crew were detail oriented, overly efficient in design and material usage, punctual and 100% reliable to his word and bids. We would not have been able to...
Royal Construction & Remodeling
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Reviewed in December 2020
We went into the Helena location in July and picked out a shed to be built. We were told 8-10 weeks from time of order, so we put $1800.00 down that day. We were told we would receive updates along the build, and to expect our shed in late August, early Sept. By mid Sept, we still had no shed,...
TUFF SHED INC - Helena
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Reviewed in June 2020
John was extremely friendly, suggesting others to do portions of the work where he didn't consider himself an expert. They were, and the job was done right. For the part he did, the work was fast, clean, and done with a smile. He's my new go-to plumber in the Boulder/Helena area.
Sorensen Plumbing
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Reviewed in April 2020
He is very meticulous, takes pride in his, work, and makes sure whatever he does is done to code. I was pleased with the work he did for me!
DLH Electric
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Reviewed in October 2016
The folks at Finstad's did a wonderful job with our flooring. It started with Chris coming out to give us ideas and options to Todd doing an exceptional job of installing the flooring from carpet to laminate. Chris and Todd made this an easy and enjoyable process and there is never a doubt...
FINSTAD'S CARPET ONE
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Find Pool and spa technicians in Boulder

Serving Boulder, MT and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"It was great, the pool technician was very helpful and kept us updated on what repairs were needed. He followed up after his visit to ensure we knew the next steps. 10/10 would have this technician again."

Recommended by82%of homeowners

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American Home Shield – Home Warranty

3.5(

5,688

)

Serving Boulder, MT and surrounding areas

In business since 1971

Credit card accepted

"They take money on muy account for my home warranty service, and they are very responsive, and very reliable. They send Repair companies to my house for repairs and services."

Recommended by65%of homeowners

Serving Boulder, MT and surrounding areas

In business since 1979

Free estimates

Credit card accepted

Mountain Hot Tub is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Response time1 day

Recommended by100%of homeowners

Serving Boulder, MT and surrounding areas

In business since 2018

Free estimates

At C&C Roofing, our company is based on the belief that our customer's needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

Response time10 mins

Recommended by100%of homeowners

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Grounded Electric LLC

New to Angi

Serving Boulder, MT and surrounding areas

In business since 2022

Credit card accepted

Offers commercial services

Welcome to Grounded Electric LLC! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!\n

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Pool and Spa Servicing questions, answered by experts

When your hot tub is completely dry, there is typically no need to introduce antifreeze into the plumbing. However, if you desire an extra layer of protection against potential freeze damage, you can consider adding some RV antifreeze to your hot tub lines. Just ensure that you use RV antifreeze specifically, as automotive antifreeze is highly toxic and should be avoided.

Biofilm growth can cause a hot tub to feel slimy. Hot tub biofilm is a slimy substance that’s typically due to natural contaminants like makeup, soaps, skin oils, deodorants, or lotions. A hot tub can also have a slimy interior or slimy water if the tub’s filters are old or damaged, or if the hot tub isn’t properly cleaned. You should drain your hot tub, wipe away any slimy residue, then refill the water and use a spa purge product that prevents the buildup of biofilm.

Using bubble bath, bath oils, bath salts, or moisturizing products that contain butters or oils can damage your jetted tub. Because of the water pump and jet mechanism, you need to be more selective with products for a jetted tub than you would for a traditional bathtub in order to keep it functioning properly and avoid expensive repairs. These products also leave residue that can feed mildew and mold, so it’s best to avoid them.

Yes, you can use silicone or epoxy hot tub repair kits to repair cracks in a hot tub. Always read the manual to see what the manufacturer recommends before attempting to repair a hot tub.

Though a hot tub has many benefits, there are a few cons. Mainly, hot tubs require a lot of maintenance. You’ll need to deep clean yours quarterly, test the pH at least once or twice a week, and add sanitizing chemicals once a week. They also have relatively high ongoing costs since you’ll need to pay for electricity and repairs.

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