Helpful Tips

Helpful Tips

Chlorine Reading

If you have a chlorine smell use the Dechlorination tablets to remove chlorine before getting in your spa and before draining. 1 tablet per 100 gallons. Wait 15 minutes. This may also be achieved by simply opening your cover and running all pumps on high for 15 minutes.

Garden Hose Pre-Filter

Highly recommended & makes initial chemical balancing easier & future issues are greatly reduced.

Filter (s)

Rinse filter(s) every week or as needed. With Average usage, filters need to be replaced yearly. Deep clean every 1-2 months using the The Natural Hot Tub Company’s ® Filter-Soak following the directions on bottle. Greatly increases (OFL) Optimum Filter Life of your main filter(s).


Highly Recommended and are compatible with The Natural Hot Tub Company’s ® Water Treatment & Conditioner


Sweep these areas out as water will turn cool and may produce a slight odor.

Bathing Suits

Wash in hot water without soap and double rinse to remove dyes and any soap residue. Colored water and foam often results if you do not rinse bathing suits properly.

Neck Jets (very important)

All jets including neck jets, waterfalls, etc., should remain open slightly so that water may flow freely during filtration cycle.

Spa Covers

Spa covers and headrests should be cleaned if any odors are present. Should you have a tear or rip in your spa cover it may need to be replaced because contaminated water may be dripping from inside your cover. Also a cover lift is a good way to preserve your cover and make your spa experience even more enjoyable.

Basic Problem Solver

Heavy Use

Should you have more than the average number of people in your spa, or ever get a slight organic odor, you may need to shock your water by adding 2-3 teaspoons of spa chlorine granules (99% Dichlor) to your water and run all jets and pumps on high for 15 minutes with your cover off. Remember spas need to breathe (oxygenate). After doing this remove your filter(s) and rinse off if necessary.

Cloudy Water

Color and clarity of your spa water can best be evaluated using a clear drinking glass. Water may become colored or cloudy from soap residues or dyes in bathing suits. Cosmetics, lotions, deodorants, body oils, & some fragrances can clog the filter causing cloudy water. If your filter(s) are over a year old, you may need to replace them. Make sure filter(s) are clean by using The Natural Hot Tub Company ® Filter Soak and ensure filtration system is filtering at least 8 hours per day (if possible). Shock the water using 2-3 teaspoons of spa chlorine granules (99% Sodium Dichlor) for up to 500 gallons or 1-2 teaspoons for less than 250 gallon hot tubs. Leave spa cover open, run all pumps on high for 10 minutes with all jets open, then rinse your filters again. Repeat if necessary. If water is hazy, you may add 1-2 oz of all natural clarifier to speed up recovery time.

Green Tinted Water

This rare occurrence could be from bathing suits (black, blue, or green colored suits), blue spa filters or colored fragrances. If none of these apply, have your water tested for copper, and use Metal Gone as directed. To prevent metal issues in the future, use a garden hose Pre-Filter when filling spa.

To Prevent Scaling

If your alkalinity is over 120 or you have had a history of scale, use a Stain & Scale product weekly. Leisure Time Defender, is the only non-toxic Stain & Scale control we could find.

High or Low pH/ Alkalinity

When adjusting your pH & alkalinity make small additions and wait 24-hours before testing, and only adjust if necessary. Usually our product will keep these balanced in the proper range. Use Spa Up or Spa Down, and check again after 24-hours. Remember, pH should be 7.2- 8.2. Alkalinity 80-120


Hardness under100ppm may cause slight foaming. Test your water and add calcium increaser as needed to solve this issue. However, excessive foaming is almost always a result of soap residue left in bathing suits. Just remove with a skimmer net and rinse your filter(s). You may have to do this twice because of the foam left in the lines in your spa. Double rinse bathing suits in hot water to remove dyes, soap & phosphates found in soap. A soap-less shower is recommended before entering your spa. Very small amounts of ‘Dirty Foam’ at times may appear, this is simply the The Natural Hot Tub Company ® Water Treatment & Conditioner taking contaminants to your filter(s), which is what it is designed to do.

Organic Odor

Shocking weekly should eliminate this, however if you do have an organic odor be sure all jets including neck, waterfalls, etc. are open slightly when spa is not in use. Make sure filter(s) are clean and the filtration system is filtering at least 8 hours per day (if possible). “Shock” the water using 2-3 teaspoons of spa chlorine granules for spas up to 500 gallons(99% Sodium Dichlor) or 1-2 teaspoons for less than 250 gallon hot tub. Leave spa cover open, run all pumps on high for 10 minutes with all jets open allowing your spa water to oxygenate.

Sludge Around Hot Tub

This is a sign of high iron, add Metal Gone as directed to resolve issue. Take a clean rag or paper towel and wipe off, it should not return. In the future, use a garden hose pre filter to remove iron in your source water. Another cause may be makeup from a previous use

Shutting Down Your Spa

You can drain your spa water safely by ensuring a zero reading of chlorine using a test strip, allow the water to cool down and then recycle the water you drained by watering trees, shrubs, gardens etc.
If you have drained your spa and expect to leave it drained for an extended period of time, you may want to shock the water with Spa Chlorine granules (2 teaspoons for spas up to 250 gallons / 1 tablespoon for spas up to 500 gallons) when refilling. Bacteria, water mold, and algae can grow in your spa lines during shut down, and this shocking should eliminate any contamination.

Your Benefits

  • No chemical spa odor
  • No more scum build-up
  • Reduces or eliminates itching & rashes
  • Leaves skin luxuriously soft & silky-smooth
  • Spend less time on maintenance
  • Easier filter cleaning
  • Put your mind at ease knowing you are helping our environment

Did You Know?

The simple act of immersing in warm water promotes healthy bodies, hearts, minds and lifestyles.

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