Hot Tub SERUM 32 fl oz. Swim Spa Serum

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Hot Tub SERUM Maintenance Liquid is an EPA registered product. Hot Tub Swim Spa Serum aids in the removal of non-public health bio-film and microorganisms. It is designed as a weekly addition to your customer sanitization regiment. The use of Hot Tub SERUM Maintenance helps to flush out the bacteria that your current sanitizers can't. It reaches down deep into the plumbing of the hot tub to help prevent the reoccurrence of contaminants that can plague every hot tub. The weekly use of Hot Tub Serum Maintenance will help to keep the water crystal clear, soft and clean. It will also aid to help prevent the occurrence of white water mold and control the swings in PH.

How To Use

We recommend that you start by using Hot Tub Serum Total Cleanse before draining and refilling your spa and prior to using Swim Spa Serum.

Make sure your filter cartridges are installed. Make sure that they are clean or new if starting with Swim Spa Serum. Refill with fresh water and start your swim spa following the directions in your swim spa order manual.

Balance the water 

Total Alkalinity 40 - 80 ppm

pH 7.4 - 7.8

Calcium Hardness 150 - 400

After balancing, shock the water with EPA approved sanitizer. Add an approved sanitizer as per your swim spa serum retailers recommendation and directions. always maintain recommended sanitizer levels. Use Swim Spa Serum total maintenance weekly. Add 1 ounce per 500 gallons once per week. 

Typically a 2,000 gallon spa will last about 8 weeks (2 months) with our 0.946 liter bottle.

Add Swim Spa Serum total maintainance product weekly as per the directions (same day every week - do not over does?

Maintain sufficient sanitizer in your swim spa at all times. DO NOT LET SANITIZER RUN OUT. 

Rinse your filter cartridge(s) weekly with pressure water to remove organic contaminates.

If your swim spa water is cloudy / foaming / yellow / green / smells: Your should shock the water and increase sanitizer level. If poor water conditions persist, clean your cartridge filters - soak and rinse  


    Customer Reviews

    Based on 1 review
    swim spa serum total maintance

    Can't give a honest review yet as we are still waiting for a backordered swim spa - BUT - have been using the hot tub version of this product and love it!


    Ask a Question
    • What is the difference between hot serum and swim spa serum?

      Swim Spa Serum is 4 times the strength of Serum Total Maintenance. The dose is 1 ounce per 400-500 gallons, not one ounce per 100 gallons. If you were to use 2 Liter Total Maintenance in a swim spa you would go through a bottle per month, which is not cost effective. The swim spa formula is made to keep the cost down. However you can not use Swim Spa Maintenance in a regular hot tub because it would foam like crazy. I hope this helps!

    • Why should I use Serum, what are the benefits?

      The biggest benefit of Hot Tub Serum in your spa is the inability of bacteria to gain control of your spa. It also eliminates on average 15 minutes week you usually spend measuring adding and testing various products. This amounts to 13 hours over a year.It eliminates having to buy and think about all of the additional balancing products. It’s simple to use. The peace of mind from knowing your hot tub water is always perfectly balanced is enormous.Another major benefit is the elimination of foul smells and chemical odors in the water and the resulting residual smell left on the skin. Many people don’t like to use a spa frequently for this very reason.Lastly, the good bacteria on the skin is not affected by Hot Tub Serum the natural oils are maintained and there is no dry, itchy feeling after leaving the spa. It’s proven safe for those who suffer from psoriasis. This benefit alone has enabled thousands of hot tub owners to use their spas again.

    • Will this swim spa serum sanitize my hot tub?

      No, you will still need to use your normal sanitization system. Serum does contain mitigating agents that help keep water clean and minimize bacterial growth. Hot Tub Serum eliminates the opportunity for bacteria to get a foothold in the first place and breaks the cycle of bacteria build up so this will minimizing the use of your chemicals. 


    • How does the serum work?

      Hot Tub Serum works by reducing the surface tension of the water, making it very difficult for bacteria to attach to a substrate and form the protective slime around themselves called Biofilm. (Biofilm is highly immune to chlorine and protects a bacterial colony so it can grow as well as acting as a food collecting system). The Hot Tub Serum process works by also removing the food sources from the water that bacteria feeds on in order to live and multiply. The result when you use Hot Tub Serum in your spa or hot tub the result is clear, fresh smelling water with a soft, silky, non-irritating feel and little or no bacterial content in the water.


    • I don't really get what this is?

      Hot Tub Serum is a laboratory-formulated blend of water cleaning agents and salts that helps maintain and balance hot tub and spa water. This minimizes the need to test and adjust individual water characteristics and chemicals in the spa. This is a process which most people dislike and have difficulty with and is a key draw back from ownership in many people’s eyes. Hot Tub Serum utilizes a specific combination of natural ingredients, which act to treat the spa and the plumbing, protecting the hot tub and extending life to hot tub components like heaters, jets and pumps.


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