Hot Tub hard water

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LoveTheBogle
Posts: 85
Joined: Tue Aug 13, 2019 5:53 pm

Hot Tub hard water

Post by LoveTheBogle »

My outdoor hot tub dries my skin out! I know that the city water is extremely ‘hard’ so inside our home we have a salt based water softener. What does one do for the hot tub? The hot tub manual specifically says not to use soft water from the house but then doesn’t offer any suggestion on softening the water.

Why would hard city water be better for the hot tub than water from a water softener?

Is there a method or chemicals or something to soften the water that is in the hot tub?

The hot tub dealer recommended some product but it didn’t say anything about softening water but was used for if your hot tub gets foam consistently (which mine does not at all).
curmudgeon
Posts: 2159
Joined: Thu Jun 20, 2013 11:00 pm

Re: Hot Tub hard water

Post by curmudgeon »

Are you checking your water regularly? The "6-way" test strips will give you a picture of much more than just the chlorine levels. It may be that your water is getting out of balance in other ways (acidic, for example). There are treatments for various water adjustments. I wouldn't think hard water by itself would be an issue.
mhalley
Posts: 8792
Joined: Tue Nov 20, 2007 6:02 am

Re: Hot Tub hard water

Post by mhalley »

I know nothing about it but maybe this will help.
https://hottubworks.com/blog/hard-water ... -tubs.html
HomeStretch
Posts: 5774
Joined: Thu Dec 27, 2018 3:06 pm

Re: Hot Tub hard water

Post by HomeStretch »

1.Test your water and adjust PH etc. with chemicals as necessary
2. Perhaps your sanitizer type is bothering you or the level
Is too high (testing will tell you)
3. Shower and apply lotion afterwards
Lalamimi
Posts: 688
Joined: Mon Jun 24, 2019 4:22 pm
Location: Texas

Re: Hot Tub hard water

Post by Lalamimi »

Is the water too hot? Could be the problem. Does it has the osmosis light? We had one in the 90s, all I can think of.
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lthenderson
Posts: 5662
Joined: Tue Feb 21, 2012 12:43 pm
Location: Iowa

Re: Hot Tub hard water

Post by lthenderson »

If your water is too hard, the scaling can cause damage to the hot tub. If it is too soft, it can cause corrosion problems on some parts. This is the same for just about any water using appliance in your house so if you don't have problems elsewhere, the water is probably safe for your hot tub.
MarkerFM
Posts: 527
Joined: Fri Nov 30, 2018 4:18 pm

Re: Hot Tub hard water

Post by MarkerFM »

You should be testing your water regularly to balance the chemicals. Daily is best, but at least weekly. Hopefully you have a good local pool store. They will test your water for free and tell you what to do. As you get more proficient, it is a simple matter to read the test strips and add the proper chemical. You will need to be able to tell the pool store how big your hot tub is or the number of gallons it holds so they can calibrate amounts.
lazydavid
Posts: 3597
Joined: Wed Apr 06, 2016 1:37 pm

Re: Hot Tub hard water

Post by lazydavid »

Join the Trouble Free Pool forum, get a proper test kit, and get your water in perfect balance. I don't have a hot tub, but many of the folks there do, and since starting to take control of my pool instead of buying whatever $$$ snake oil the pool store suggested, I've saved a TON of money and had far better results.
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avenger
Posts: 894
Joined: Mon Dec 02, 2013 12:11 pm

Re: Hot Tub hard water

Post by avenger »

lazydavid wrote: Wed May 20, 2020 10:24 am Join the Trouble Free Pool forum, get a proper test kit, and get your water in perfect balance. I don't have a hot tub, but many of the folks there do, and since starting to take control of my pool instead of buying whatever $$$ snake oil the pool store suggested, I've saved a TON of money and had far better results.
Agree with above. Troublefreepools.com is the bogleheads of pools. We are in the middle of a build. Putting in a plunge pool in our backyard in Chicago city proper. They have been invaluable, providing advice throughout the entire process. Get a proper testing kit from trouble free pools and post your problem there.
cheers ... -Mark | "Our life is frittered away with detail. Simplify. Simplify." -Henry David Thoreau | [VTI, VXUS, VWITX, SV fund]
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