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Mineral Problems

Soft Water In Spa
Green Hair From Spa
Yellow-Orange Residue On Spa

Soft Water In Spa
Q:
Why am I told not to fill my Spa with Soft Water ?
A:
Soft water can be corrosive and lead to excessive foaming. But, that's not the whole story. If your softening equipment only removes hardness, there is no point in using softened water --- unless your water is very hard. If the water hardness is over 400 PPM, I would use a mixture to reduce the hardness to approx. 200 PPM.

If your equipment can remove iron, I would opt to use all softened water and would use Spa Clear Liquid Calcium Increaser to boost the hardness. This way you are avoiding the iron problem.

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Green Hair From Spa
Q:
I have a spa that is inground, fiberglass, w/ an ozonator, sanitized w/ bromine. I use potassium monopersulfate and foam down. Last weekend there was a problem with green hair. Not just a little green, but bright green. Why, and what do I do?
A:
The green hair was probably caused by copper in the water.

It seems that you operated the spa for a considerable time with a low pH, causing corrosion of the heater core. Because the copper was unchelated, the problem occurred. Copper in algaecide form is typically chelated (stabilized) to avoid such problems.

If you added pH MINUS in order to lower the pH, it is likely that the pH reading was falsely high. Bromine can interfere with phenol red solution and produce a pink-purple color that looks like a high pH. In fact it has nothing to do with the pH. Add chlorine neutralizer test solution before the phenol red in order to eliminate any errors.

There is a possibility that the monopersulfate was not buffered. This normally acidic material should be buffered for spa use.

All Aqua Clear Monopersulfate products for use in spas are buffered in order to avoid a low pH condition. These include the Spa Clear and SUN brands.

To stop further problems either empty the spa and start over or add a product such as Spa Clear MINQUEST. Have water tested for copper to be sure and add a dosage based upon the actual content. Add product on a regular basis to avoid future problems.

Try using an acidic hair conditioner in order to help remove the color. Shampoo, rinse apply conditioner and leave on for 15 minutes and rinse.

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Yellow-Orange Residue On Spa
Q:
We renovated our BR last October. We replaced our old ceramic tub with a spa. Immediately, we noticed yellow-orange residue appearing on the tub surface after use. We have tried Cascade and Clorox, without success; The spa maker suggests it might be mustard algae in the lines prior to delivery, and never killed off. Ideas ???
A:
It is not mustard algae. Mustard algae is "pollen-like" and brushes easily. What you have sounds like iron. Do you have a problem with iron in your water??????

In treating a spa you always have the option of draining and the spa should be drained periodically. Draining a pool is not practical.

The easiest way of dealing with the problem is as follows: Drain water Use a solution of equal parts of Swim-Free Hydro-Quest or Sun Mineral Control and apply directly on the stained areas. Use rubber gloves!!!!! After stains are removed, rinse and drain. Refill spa and add either Spa Clear Sparkalizer, Sun Mineral Control for the Spa, or one ounce of the products used to remove the stains. This will help complex the iron and prevent a recurrence. Repeat this dosage after each refill or addition of make up water.

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