Reagent Refills – OTO & Phenol Red | Meipool China

 

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.

High-Quality Meipool OTO & Phenol Red Reagent Refills Available in Pakistan

Ensure accurate and reliable pool testing with Meipool’s OTO and Phenol Red reagent refills, now available at Islamabad Pools. Our high-quality test kits provide essential tools for maintaining pool water that is safe and hygienic.

Product Features

  • OTO Reagent: Ideal for detecting chlorine levels, our OTO reagent turns yellow to brown based on the chlorine concentration, providing a quick gauge of your pool’s sanitization level.
  • Phenol Red Reagent: Conduct precise pH testing with our Phenol Red solution, which offers clear color changes to indicate different pH levels. This test is reliable even in high-chlorine conditions with the simple addition of a chlorine neutralizer.

Key Benefits

  • Durability: Long-lasting supplies ensure multiple testing sessions with consistent accuracy.
  • Cost-Effective: Get the best value for your investment with our affordable reagent refills.
  • Easy to Use: Simple instructions and quick results make our refills ideal for routine pool maintenance.

Common Questions Answered

  • Q: How does high chlorine affect pH readings?

  • A: High chlorine levels can interfere with pH readings. Using a chlorine neutralizer, like R-0007, before testing can prevent inaccuracies in such scenarios.

  • Q: Can I use these reagents for spa testing?

  • A: Yes, both reagents can be used for spas as well. However, for bromine-treated spas, adjustments are necessary due to potential interference with the pH color indicators.

Ensure your pool or spa is in perfect condition with Meipool’s reliable and easy-to-use reagent refills. For more details and to order online, visit Islamabad Pools.

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