I'm currently managing two pools and a spa. I'm trying to figure out if I should make any adjustments to the standard ideal ranges to improve their water chemistry. Any feedback or suggestions are welcome. All pools are located in Madison, AL.
Chemicals In Use
Cal-Hypo Tabs (68%) (On CAT 2000 Auto-Feed for All Pools)
Cal-Hypo Granular (68%)
Muriatic Acid (31.45%) (On CAT 2000 Auto-Feed for All Pools)
Sodium Bicarbonate
Soda Ash
Sodium Thiosulfate
Main Pool
Volume: 55,000 gals
Depth: 3.5' to 4'
Type: Indoor Plaster (3 years old)
Temperature: 85 F
Filtration: 7 1/2 HP Pump w/ 3 Triton TR-140C Sand Filters
Last Chemical Check
FC: 3
CC: 0
pH: 7.4
Alk: 100
CH: 500
CYA: 0
Notes:This pool gives me hardly any issues. At these levels the water maintains great clarity, though not 100% (there are some extremely fine particles in the water). Should I be concerned with the high CH level? I don't notice any scaling.
Splash Pool
Volume: 6,360 gals
Depth: 0' to 2'
Type: Indoor Plaster (3 years old)
Temperature: 90 F
Filtration: 2 HP Pump w/ 1 Triton TR-140C Sand Filter
Last Chemical Check
FC: 3
CC: 0
pH: 7.4
Alk: 100
CH: 360
CYA: 0
Notes: This pool has water features that, when in operation, cause rapid aeration. Whenever the features are running, alkalinity and FC seem to drop somewhat rapidly. I believe the alkalinity decline is due to the aeration causing a pH rise and therefore causing the CAT controller to feed acid.
Spa
Volume: 1,250 gals
Depth: 3.5'
Type: Indoor Plaster (3 years old)
Temperature: 104 F
Filtration: ? HP Pump (label has worn off) w/ 1 Triton TR-140C Sand Filter
Last Chemical Check
FC: 3
CC: 0
pH: 7.4
Alk: 100
CH: 360
CYA: 0
Notes: The spa has hydrotherapy jets that cause a lot of aeration. Cannot seem to hold a stable alkalinity level throughout the day (probably the aeration -> pH rise -> acid feed situation again). I drain it weekly due to the high bather load it sees. Although the PSI on the filter never seems to increase, more than a week without draining the water causes the water become hazy despite good chemistry.
I've been targeting FC 3, pH 7.5, and Alk 100 for all of the pools so far. Wondering if these targets should be adjusted at all. All input welcome.
Chemicals In Use
Cal-Hypo Tabs (68%) (On CAT 2000 Auto-Feed for All Pools)
Cal-Hypo Granular (68%)
Muriatic Acid (31.45%) (On CAT 2000 Auto-Feed for All Pools)
Sodium Bicarbonate
Soda Ash
Sodium Thiosulfate
Main Pool
Volume: 55,000 gals
Depth: 3.5' to 4'
Type: Indoor Plaster (3 years old)
Temperature: 85 F
Filtration: 7 1/2 HP Pump w/ 3 Triton TR-140C Sand Filters
Last Chemical Check
FC: 3
CC: 0
pH: 7.4
Alk: 100
CH: 500
CYA: 0
Notes:This pool gives me hardly any issues. At these levels the water maintains great clarity, though not 100% (there are some extremely fine particles in the water). Should I be concerned with the high CH level? I don't notice any scaling.
Splash Pool
Volume: 6,360 gals
Depth: 0' to 2'
Type: Indoor Plaster (3 years old)
Temperature: 90 F
Filtration: 2 HP Pump w/ 1 Triton TR-140C Sand Filter
Last Chemical Check
FC: 3
CC: 0
pH: 7.4
Alk: 100
CH: 360
CYA: 0
Notes: This pool has water features that, when in operation, cause rapid aeration. Whenever the features are running, alkalinity and FC seem to drop somewhat rapidly. I believe the alkalinity decline is due to the aeration causing a pH rise and therefore causing the CAT controller to feed acid.
Spa
Volume: 1,250 gals
Depth: 3.5'
Type: Indoor Plaster (3 years old)
Temperature: 104 F
Filtration: ? HP Pump (label has worn off) w/ 1 Triton TR-140C Sand Filter
Last Chemical Check
FC: 3
CC: 0
pH: 7.4
Alk: 100
CH: 360
CYA: 0
Notes: The spa has hydrotherapy jets that cause a lot of aeration. Cannot seem to hold a stable alkalinity level throughout the day (probably the aeration -> pH rise -> acid feed situation again). I drain it weekly due to the high bather load it sees. Although the PSI on the filter never seems to increase, more than a week without draining the water causes the water become hazy despite good chemistry.
I've been targeting FC 3, pH 7.5, and Alk 100 for all of the pools so far. Wondering if these targets should be adjusted at all. All input welcome.