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Basic pH and Chlorine Test Kit | Astral Pool

 

 

The OTO (Orthotolidine) test is an older type of test kit that is not widely used any longer since DPD has become so prevalent.  OTO is a solution that turns yellow when added to chlorinated water.  The darker it turns, the more chlorine is in the water.  If the chlorine level is really high, then the sample will turn brown.
One benefit of this type of test is that it does not bleach out in the presence of high levels of chlorine.

Phenol Red
The pH test is a fairly straightforward one.  It is based on phenol red solution which turns different colors based on the pH of the water.
There are a couple of interferences to be aware of in the pH test.
High chlorine levels can cause the test to come out wrong.  If the chlorine level is above 5.0 ppm free available chlorine, then you will need to put one drop of R-0007 (chlorine neutralizer) into the sample before you add the pH drops.
High bromine ion concentration in the water can also affect the test.  If the spa is on bromine or if you have used a bromine salt type algaecide, then it may cause your phenol red to turn to bromthyol blue.  This might cause a purplish reading on the pH test even though you have a low pH.

Availability: In Stock

Category:

Astral Pool OTO and Phenol Red Reagent Refills for Accurate Pool Testing

  • Introduce the product highlighting its essential utility: “Ensure precise chlorine and pH level management in your swimming pool with our Astral Pool Reagent Refills, featuring OTO and Phenol solutions. Designed for reliability, these refills help maintain pool water safety and balance.”
  • Mention the ease of use and effectiveness, which are crucial selling points observed in product reviews

Key Features

  • List important product attributes:
    • “OTO solution changes from yellow to brown indicating chlorine levels.”
    • “Phenol Red solution provides clear color changes to reflect pH levels.”
    • “Suitable for all water types, ensuring wide applicability for different pool systems.”​

Specifications

  • Provide detailed specifications:
    • “Includes vials for easy application.”
    • “Pack contains OTO and Phenol Red solutions.”
    • “Accurate water testing for chlorine and pH levels.”

Pricing and Availability

  • Offer competitive pricing details and availability specific to the Islamabad market, possibly matching or underpricing key competitors while highlighting any special offers or discounts.

FAQs

  • Address common questions to assist potential buyers in making informed decisions. For instance:
    • Q: “How do I use the OTO and Phenol Red refills?”
    • A: “Add the indicated number of drops to your pool water sample according to the provided instructions. Compare the resulting color with the color chart to determine the chlorine and pH levels.

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