2nd Step

There is a very easy, simple, and inexpensive cure for calcium scaling – vinegar. Vinegar is acetic acid. It will dissolve the calcium. Importantly it will remove the calcium everywhere scaling occurs, including your spa shell, the jets, and inside your spa’s plumbing.

You can use a more concentrated vinegar (20 – 30% acetic acid) available at gardening stores and some home improvement stores however this in considerably more expensive than the plain-old vinegar available at your grocery store. Depending on the gallon capacity of your spa, you will likely need 3 gallons of store-bought vinegar. Simply throw the 3 gallons of vinegar in your spa. Don’t use your spa!

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