The title says it all really.
Thank you for taking the time to read this post.
Any assistance would be greatly appreciated.
Calcium carbonate (I have had this tested) is precipitating out of the pool water. Pretty sure this happens when the electrolysis cell is running.
Cyanuric acid levels drop very quickly.
Electrolysis cell can't keep up desired free chlorine level (4ppm)
The pool has been shocked quite a few times recently. On one occasion free chlorine was about 17ppm after adding sodium hypochlorite in the late afternoon and had reduced to about 3ppm the following morning.
Yesterday I swapped the electrolysis cell for another. I will know in a couple of days if this has had any effect. (I doubt it)
Recent pool test results and additions:
pool 2 forum share
Some links to pics in the sheet (last column)
Feed water:
Calcium Hardness: 12ppm
Treated pool with approx 0.5ppm ClO2 11/12/18
Ammonia level 17/2/19: less than 0.5ppm NH3
Pool And Plant:
In-ground, tile lined, concrete construction, approx 18000L
Plumbing circuit:
pool
pump
Prizma sampling take-off (Blue I Technologies)
Hayward cartridge filter
gas heater
electrolysis cell (SteriSel Pool Controls)
acid injection
pool
Solar heating circuit:
pool
pump (thermistor controlled)
collector
pool
Fountain circuit:
pool
pump
fountain
pool
Pump runs for 3 x 4hrs a day OR 24hrs a day (depending on usage) giving 7 times pool volume turn over per 24hrs (minimum)
Prizma tests 3 x day regardless
Testing equipment:
Palintest 25 pro+ Palintest (calibrated 11/2016)
Chemicals Used:
Solid (powdered) cyanuric acid (1000g/Kg) (added to skimmer box)
Sodium hypochlorite (130g/L available chlorine present as sodium hypochlorite)
Thanks,
Martin
edit 1:
Add recent analytic test results
Add some chemicals used
Add solar and fountain info
Add test equipment used
edit 2:
add recent NH3 level
edit 3:
added date pool treated with ClO2
edit 4:
added calcium hardness of feed water
Thank you for taking the time to read this post.
Any assistance would be greatly appreciated.
Calcium carbonate (I have had this tested) is precipitating out of the pool water. Pretty sure this happens when the electrolysis cell is running.
Cyanuric acid levels drop very quickly.
Electrolysis cell can't keep up desired free chlorine level (4ppm)
The pool has been shocked quite a few times recently. On one occasion free chlorine was about 17ppm after adding sodium hypochlorite in the late afternoon and had reduced to about 3ppm the following morning.
Yesterday I swapped the electrolysis cell for another. I will know in a couple of days if this has had any effect. (I doubt it)
Recent pool test results and additions:
pool 2 forum share
Some links to pics in the sheet (last column)
Feed water:
Calcium Hardness: 12ppm
Treated pool with approx 0.5ppm ClO2 11/12/18
Ammonia level 17/2/19: less than 0.5ppm NH3
Pool And Plant:
In-ground, tile lined, concrete construction, approx 18000L
Plumbing circuit:
pool
pump
Prizma sampling take-off (Blue I Technologies)
Hayward cartridge filter
gas heater
electrolysis cell (SteriSel Pool Controls)
acid injection
pool
Solar heating circuit:
pool
pump (thermistor controlled)
collector
pool
Fountain circuit:
pool
pump
fountain
pool
Pump runs for 3 x 4hrs a day OR 24hrs a day (depending on usage) giving 7 times pool volume turn over per 24hrs (minimum)
Prizma tests 3 x day regardless
Testing equipment:
Palintest 25 pro+ Palintest (calibrated 11/2016)
Chemicals Used:
Solid (powdered) cyanuric acid (1000g/Kg) (added to skimmer box)
Sodium hypochlorite (130g/L available chlorine present as sodium hypochlorite)
Thanks,
Martin
edit 1:
Add recent analytic test results
Add some chemicals used
Add solar and fountain info
Add test equipment used
edit 2:
add recent NH3 level
edit 3:
added date pool treated with ClO2
edit 4:
added calcium hardness of feed water
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