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Swimming Pool Care help & information, questions answers

How to adjust your pool's Total Alkalinity & Calcium Hardness
Good water balance - you can also watch the Video here!

Maintaining proper Total Alkalinity (TA) helps prevent 'pH bounce" when in a range of 80 - 125 ppm.

Low TA can cause difficulty in bringing and keeping pH in its proper range as well as corrosion. High TA leads to scaling.

Proper Calcium Hardness - between 250 - 350 ppm - prevents long-term corrosion (low CH) and scaling of pool surfaces and equipment (high CH). 

If you live in an area of "hard water," be sure to have your water tested frequently. Special adjustments will need to be addressed including pH & Total Alkalinity to prevent scaling & damage to your pool & its equipment.

To learn how to Decrease or lower the pH or Total Alkalinity using Muriatic Acid, click here.
 

How to Increase or Decrease the Total Alkalinity in Your Pool
Test Results
ADD
Pool Volume in U.S. GALLONS
7,500 10,000 12,500 15,000 17,500 20,000 22,500 25,000 27,500 30,000
40 ppm Balance Pak 100 9 lbs. 12 lbs. 15 lbs. 18 lbs. 21 lbs. 24 lbs. 27 lbs. 30 lbs. 33 lbs. 36 lbs.
60 ppm Balance Pak 100 7 lbs. 9 lbs. 11 lbs. 13 lbs. 16 lbs. 18 lbs. 20 lbs. 22 lbs. 25 lbs. 27 lbs.
80 ppm Balance Pak 100 4 lbs. 6 lbs. 7.5 lbs. 9 lbs. 10 lbs. 12 lbs. 13 lbs. 15 lbs. 16 lbs. 18 lbs.
100 ppm
Acceptable Range!
Vinyl/Fiberglass Pools:  125 - 150 ppm
Concrete/Gunite Pools:  100 - 150 ppm
120 ppm
160 ppm
200 ppm Lo 'n Slo 5 lbs. 6 lbs. 7 lbs. 9 lbs. 11 lbs. 13 lbs. 14 lbs. 16 lbs. 18 lbs. 20 lbs.
220 ppm Lo 'n Slo 7 lbs. 9 lbs. 11 lbs. 14 lbs. 17 lbs. 19 lbs. 21 lbs. 24 lbs. 27 lbs. 30 lbs.
240 ppm Lo 'n Slo 9 lbs. 11 lbs. 14 lbs. 19 lbs. 23 lbs. 25 lbs. 28 lbs. 32 lbs. 36 lbs. 40 lbs.

All dosages are approximate. Remember to retest the Total Alkalinity the following day, letting the filter run continuously & adjust as necessary.   Learn about the importance of Good Water Balance here.

Buy Balance Pak 100 here

How to Increase the Calcium Hardness in Your Pool
Test
Results
YOU NEED Pool Volume in U.S. GALLONS
 7,500 10,000 12,500 15,000 17,500 20,000 22,500 25,000 27,500 30,000
50 ppm Balance Pak 300 15 lbs. 20 lbs. 25 lbs. 30 lbs. 35 lbs. 40 lbs. 45 lbs. 50 lbs. 55 lbs. 60 lbs.
100 ppm Balance Pak 300 9 lbs. 12 lbs. 15 lbs. 18 lbs. 21 lbs. 24 lbs. 27 lbs. 30 lbs. 33 lbs. 36 lbs.
150 ppm Balance Pak 300 4 lbs. 6 lbs. 8 lbs. 9 lbs. 11 lbs. 12 lbs. 14 lbs. 15 lbs. 17 lbs. 18 lbs.
200 ppm Acceptable Range!
Vinyl/Fiberglass Pools:  200 - 250 ppm
Concrete/Gunite Pools:  250 - 300 ppm
250 ppm
300 ppm
Over
350 ppm
Calcium Hardness too high, cloudy water and / or scaling may occur.
Draining SOME water will help.
NEVER completely drain your pool.  Serious damage will occur.  Always check with your local pool builder.

All dosages are approximate. Remember to retest the Calcium Hardness 24 - 48 hours, letting the filter run continuously & adjust as necessary.

Buy Balance Pak 300 here

Remember that the source water for filling your pool can have certain properties that can cause chemical changes as you top off your pool; especially calcium hardness & metals & minerals.  If your tap water is "soft" or "hard", those chemical make ups, make a difference.  The use of water softeners makes a difference.  PLEASE tell us this information when you contact us so that we can better help you.

US Water Hardness Map

If you still need help, here's how to reach us:

Telephone (during store hours): Stratford  203-377-0100
                                             
FAX: (24 hrs) 203-375-7787
Email: techhelp@parpool-spa.com

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