Getting Started and Mineral Unit

wobuzhudao

New member
May 13, 2025
4
Shingle Springs, CA
My weeks of free pool service is up in a few weeks, and I'm gearing up to take over. I'll be going though the Taylor tests this week to get practice and to check the company's work.

Any first tips that aren't generally found on the site here are welcome. But one specific question... The service company recommended getting a mineral unit because they saw a little algae on the wall. I wasn't there at the time, and I'm having trouble finding where they were seeing it. What is your opinion about using an algaecide like mineral unit?
 
. What is your opinion about using an algaecide like mineral unit?
Welcome! Sadly they are a complete waste of money and can cause staining depending on what minerals are being added. If you have algae, it means the chlorine level is too low for how much stabilizer is in the water. Here’s an article about it:

 
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Congrats on taking it over yourself. You will do a better job than someone at an hourly wage that sees your pool once per week. Get one of our recommended test kits and then do some reading of the following links to get yourself familiar with how easy this can be. Whether you have algae or not needs to be determined so I'll include the link to the OCLT test that can help determine that and the SLAM process to fix it.
Pool Care Basics
Overnight Chlorine Loss Test
SLAM Process
Test Kits Compared
 
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  1. Most of that is excellent.
  2. When you test FC, use 10mL and each drop is .5 FC. Don't need .2 accuracy and 10mL will save reagent.
  3. You should keep your FC level based on your CYA. I would stay at the top of the range for your CYA, and if you have to dose higher, so that you are near the top of the range when you test, do that. Link-->FC/CYA Levels
  4. If there was visible algae, do the OCLT as you indicated.
Great job with the testing.