Recent content by mikeyliny

  1. M

    Suggested replacement cartridges for Pentair DE 80 other than Pentair Brand

    The filter replacements for Pentair DE line are expensive, close to half the price of the filter which comes with cartridges, around $130 per cartridge. There is a brand called Optimum sells a 4-pack on Amazon for a few hundred. Does anyone have experience with replacement cartridges by Optimum...
  2. M

    Cleaning Fiberglass Pool Stains

    I'm looking for some creative ways to clean fiberglass stains at various depths without damaging either the pool or myself. My pool installer recommended undwater abrasives like underwater sand paper, but doing this by hand will take forever. I am thinking of some of the following with I saw...
  3. M

    Increasing Free Chlorine in Covered Pool in absence of CYA

    possible. I'm working one by one to eliminate possible weak points starting with the easiest/least work first: Chorinator, chlorine, filtration. But i was not using my chlorinator because I thought maybe it wasnt working. I added about a drop of the chlorine to a cup of pool water and tested the...
  4. M

    Increasing Free Chlorine in Covered Pool in absence of CYA

    Here is where I'm at. After adding another 2 gallons of sodium hypochlorite solution, and testing after 30 minutes, I'm registering some chlorine finally FC=2 TC=2 (so CC=0) Given the amount of chlorine I have had to add in order to register a reading, 4 gallons, nearly twice the suggested...
  5. M

    Increasing Free Chlorine in Covered Pool in absence of CYA

    Let me rephrase, if there is algae in the pool is it possible that TC=0 and FC=0 after adding 2 gallons of chlorine? in this case, if FC stays at 0, then TC should rise in the form of CC, assuming there is algae or something else consuming chlorine
  6. M

    Increasing Free Chlorine in Covered Pool in absence of CYA

    Can you please elaborate, I'm not sure I fully undestand your answer.
  7. M

    Increasing Free Chlorine in Covered Pool in absence of CYA

    My pool Chlorine isnt rising after adding 2 Gallons of Sodium Hypochlorite solution. Taylor K-2006C testing shows that FC=0 TC=0 pH=7.4 CYA=0, but my pool is covered. Please correct me if my assumptions are incorrect: 1. CYA prevents chlorine degradation from taking place: 2Cl- + 2H2O +...
  8. M

    Increasing Free Chlorine in Covered Pool in absence of CYA

    If there is algae in the pool would TC=FC? My undersanding is that the Total Chlorine would register higher if anything is consuming Chlorine. As mentioned I have both Taylor K2006C and Test Strips. Third, and this is part of my main question, CYA should probably not be relevant when the pool is...
  9. M

    Increasing Free Chlorine in Covered Pool in absence of CYA

    Testing I have verified my measurments using different testing units including 1. Taylor K-2006C 2. EasyTest Test Strips 3. HACH Acquacheck Test Strips In the past, I have found that the test-strips have been relatively accurate, never varied significantly from Taylor-2006C results for...
  10. M

    Increasing Free Chlorine in Covered Pool in absence of CYA

    Testing I have verified my measurments using different testing units including 1. Taylor K-2006C 2. EasyTest Test Strips 3. HACH Acquacheck Test Strips In the past, I have found that the test-strips have been relatively accurate, never varied significantly from Taylor-2006C results for...
  11. M

    Increasing Free Chlorine in Covered Pool in absence of CYA

    If a pool is covered and both TC and FC are zero, what would prevent chlorine from being increased after chlorine is added? There are many posts here that suggest increasing CYA in "chlorine lock." My understanding, however, is that CYA will prevent chlorine degradation from taking place...
  12. M

    Maintaining Ph when using a salt chlorine generator

    thanks for the chemistry info, you never realize until later in life when those chem courses in high school, sometimes college become important, such as when having a pool. Meanwhile, at what pH would it be best to add CYA? does it make sense to add after titrating pH to within a specific range?
  13. M

    Maintaining Ph when using a salt chlorine generator

    Right now my CYA is low, which I did because I thought I could add to it after getting ideal levels. I havent achieved because of a lack of vigilence I believe, but also working on the many variables that make pool maintenance 'fun' or 'annoying.' My observation, is that with relatively low...
  14. M

    Maintaining Ph when using a salt chlorine generator

    Using a salt chlorine generator results in the generation of chlorine as well as sodium hydroxide (a strong base) that increases PH. Therefore, if I increase the chlorine generation % of my device, I will also be increasing PH. 2NaCl + 2H2O → 2NaOH + Cl2 + H2 OR Sodium Chloride + Water =...