Asked by: Babette Spiess
style and fashion bath and shower

Can I put water softener salt in my hot tub?

Last Updated: 18th April, 2020

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Salt is still chlorine. It is not a table salt or a water softener salt. Although salt systems have been very popular in swimming pools over the years, many companies are trying to integrate them into their hot tubs and it doesn't work. We do not recommend using a salt system in a hot tub for many reasons.

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Considering this, can you put salt water in a hot tub?

The good news is yes, you can! Salt-water systems can safely be used in hot tubs, and have the same benefits that they do in pools. Fans of salt water systems report that they are cheaper in the long run, result in softer skin, make it easier to balance the pH of the water and are easier to maintain!

Beside above, can you put water softener salt in a pool? Water softener salt is just as pure as pool salt so it can be used in place of pool salt. The bag itself will confirm this by saying the salt is better than 99% pure sodium chloride. This salt can be used in your pool because it is the same salt that they sell as pool salt only a little bigger.

Regarding this, is it OK to fill a hot tub with softened water?

Water from a home softener is not properly balanced for hot tubs, however, so if you must fill your hot tub with a softened water supply, you'll need to harden it up with treatments before it causes any problems.

How much salt do I put in my hot tub?

The most common salinity required is 2,500 ppm but refer to the manufacturers instructions and guidelines for your specific salt system. The amount of salt is really low and works out to about 2 pounds for every 100 gallons but be sure not to add too much otherwise you will have to empty some water and refill.

Related Question Answers

Aynhoa Smitten

Professional

Will Epsom salt ruin a hot tub?

Chemical Reactions. Pure Epsom salts are an alkaline compound also known as Magnesium Sulphate. The mildly acidic properties of Epsom salts can very quickly disrupt the total alkalinity and pH balance of the water in your hot tub.

Lleir Creuzburg

Professional

Are salt water hot tubs healthy?

Here are common benefits of saltwater hot tubs that ensure a relaxing and healthy soak: Increased water softness and buoyancy: The moderate amount of chlorine produced by the salt system keeps your water quality consistently soft for longer periods before draining and refilling your hot tub water.

Brittney Tsyavlovsky

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When's the best time to buy a hot tub?

For the experienced hot tub-er there is no doubt, that winter is really the best time to enjoy a hot tub. The best time of year for savings is often during the winter months, as well. This is when we clear out this year's models (including displays), so that we can make room for next year's models.

Yenisey Paulmayr

Explainer

What are the benefits of a saltwater hot tub?

A salt water soak has all the benefits of a regular freshwater hot tub or spa session, with an added bonus: salt water helps extract extra fluid from the skin, which helps with swollen joints and inflammation. People who suffer from arthritis can experience greater relief in a salt water hot tub. Less chlorine use.

Pola De Peña

Explainer

Which is better saltwater or chlorine hot tub?

Seawater has a salt concentration of around 35,000 parts per million (ppm). A salt water hot tub has a concentration of just 1,750 ppm. * With just a little salt in your spa water, the system generates chlorine automatically so you can spend less time measuring and adding chemicals.

Valeria Perol

Explainer

What kind of salt do you use in a hot tub?

It depends on which types of salt you use – sodium bromide salts will convert to bromine and sodium chloride salts (regular salt) will convert into chlorine. The cost of using the Bromides will be higher however, but bromine does have benefits over chlorine in a hot water environment.

Safwan Buchschmid

Pundit

How do you convert a hot tub to saltwater?

  1. Drain and Clean Your Hot Tub.
  2. Refill the Hot Tub.
  3. Test the Salinity and Add Salt.
  4. Test the Water Chemistry.
  5. Mount the Chlorinator Control Panel.
  6. Attach All the Cables.
  7. Place the Chlorinator in the Hot Tub.
  8. Plug It In.

Buford Gluhih

Pundit

How do you take care of a salt water hot tub?

With the FreshWater® Salt System, spa owners only need to drain and refill their hot tubs once every 12 months with normal use. That's significantly less work than hot tub owners experience using traditional chlorine systems. With traditional chlorine systems, spa water needs to be drained every three to four months.

Xiaolin Bekher

Pundit

Why is soft water bad for hot tubs?

Whereas hard water can produce stains and scale, soft water can be corrosive to the soft and shiny parts of your hot tub. It also leads to excessive spa foaming problems. Add Calcium Hardness Increaser when your spa or hot tub is less than 150 ppm.

Marusia Fernandez De Gorostiza

Pundit

Can you fill a pool with softened water?

Soft Water Must be—Harder!
But in a pool, some calcium hardness is a necessity. The trouble in filling a swimming pool with softened water is that “soft water” may seek to balance itself by leeching calcium directly from pool walls—causing the pool's plaster or tile grout to dissolve, corrode and eventually crumble.

Feliks Monasteriobide

Teacher

How do I soften my pool water?

Use Chemical Water Softener
Water-softening pool chemicals reduce the hardness of your pool's water. To add water softener to your pool, fill a five-gallon bucket with 2.5 gallons of water from your pool. Add water softener to the bucket based on the size of your pool and the instructions on the packaging.

Doro Kammer

Teacher

Is Hard Water Bad for hot tubs?

Hard water contains an extremely high concentration of minerals like calcium. When the spa gets filled with hard water, it can cause filter and spa part failure and/or cause the pipes inside to clog. Additionally, hard water is not just harmful for the body of your spa but also can affect your skin.

Lessie Borderia

Teacher

Is it safe to swim in hard water?

Hard water can cause damage to your pool and result in white residue left on ladders, pool decks and other surfaces. This is known as "scaling" and is the result of calcium hardening on a surface. According to Pool Center, water balance is a term used to describe water that is neither scaling nor corrosive.

Aryan Tiefenthaler

Teacher

How do you check calcium hardness in a hot tub?

How to Test Calcium Hardness in Your Hot Tub
  1. Step 1: Use of Test Strips. You can buy calcium hardness test strips easily as they are available in pool supply retailers and many hardware or home improvement stores. It is important to know the quantity of water you will test on.
  2. Step 2: Check the Results. Wait for a time before checking the results.

Bah Mikhailets

Reviewer

Why does my pool need calcium?

Although soft water is desirable in everyday home use, calcium hardness is necessary in pool water. With sufficient levels of calcium dissolved, the aggressive nature of water is tamed and will help prevent the leaching out of certain substances in pool equipment.

Sulaiman Kloth

Reviewer

Can I put Epsom salt in my saltwater pool?

Saltwater swimming pools require different maintenance than ordinary, chlorinated swimming pools -- and that includes the occasional addition of Epsom salt (magnesium sulfate). Epsom salt travels through saltwater pool filters and chlorine generator cells, softening buildup and making cleaning easier.

Zsuzsa Zwaan

Reviewer

What type of salt is used in water softeners?

Water softeners and conditioners work effectively with either sodium chloride (commonly referred to as salt) or potassium chloride (actually a type of salt, also). Some of the softening salt pellets sold at the supermarket or home improvement store contain a high level of water-insoluble matter or impurities.

Leonore Inglethorpe

Reviewer

Is there a difference between pool salt and table salt?

Unlike chlorine, pool salt is actually just standard NaCl, sodium chloride. It is really just table salt in a different form. The primary difference is that pool salt comes in a larger cuts or sizes. Pool salt also does not cause the eye and skin irritation that chloramines from chlorine can.

Udane Picasarri

Supporter

What type of salt is used in saltwater pools?

Use a salt that is at least 99.8% pure sodium chloride (NaCl). The preferred salt is an evaporated, granulated, food quality, NON-iodized salt. Avoid using salt with anti-caking agents like sodium ferrocyanide, also known as Yellow Prussiate of Soda (YPS).