By Natural Chemistry



Model # 04111

Product Description

Natural Chemistry Chlorine Concentrate 1.5 lbs.

Spa Chlorine Concentrate provides active chlorine residual to sanitize spa water, creating a clean, safe spa environment. It is part of the Sanitize group of products used in the Spa EASE program.


  • Controls bacteria in spa water
  • Easy to dose & measure cap


  • Maintenance Dose: 1/2 teaspoon per 100 gallons
  • Superchlorination: 1 teaspoon per 100 gallons

How to Apply:

Maintenance Dose:

  1. With pump on, add 1/2 teaspoon per 100 gallons of water (5 teaspoons per 1,000 gallons) as an initial treatment
  2. Repeat at 15 to 20 minute intervals until a residual of 3-5ppm of available chlorine is established as determined by a test kit

Super Chlorination:

  1. Use 1 teaspoon per 100 gallons of water or 1/4 cup per 1,000 gallons
  2. Superchlorination may be needed on a nightly basis in a heavily used spa or as infrequently as once a week in a moderately used spa


Features & Benefits:

  • Specifically designed for spas and hot tubs
  • Controls bacteria and algae in spa water pH neutral

For our complete line of Natural Chemistry Pool & Spa Chemicals

Product Specifications

2 lbs.

?     Asked on 7/8/2012by Guest

How do I break chlorine lock?

A  Answered on 7/8/2012 by InyoPools Product Specialist Patrick P.

One of the main reasons that chlorine can become "locked" is that too much stabilizer has accumulated over the course of time. Stabilizer (cyanuric acid) can build up over a long period of time, sometimes months or even years. Once the stabilizer reaches high levels, the chlorine in the water is useless. The only way to break the lock is to reduce the level of cyanuric acid in the pool. The quickest way to do this is to add fresh water to the pool. This will help dilute the acid levels in the pool so that the chlorine will become more effective. Pools should be partially drained and refilled (every 3 years or so).