How much chlorine should I use in my pool?

These charts will give you an estimate of how much chlorine to buy and use. Our suggestions for a season’s supply are based on past experience in a 4 month season, with average weather. If you live in a warm weather climate or keep your pool open much longer, please base your seasonal use on these factors. Your actual use will depend on such variables as: type of filter, local weather, bather load, closeness to trees and plants, careful water testing etc. Always read directions carefully and use all chemicals as directed on the label.

ROBELLE CHLORINE USEAGE

(Daily and Seasonal)*

PRODUCT

DOSE PERIOD

PER GALLONS OF POOL WATER

2,500

5,000

7,000

10,000

13,500

20,000

25,000

30,000

3” Jumbo Tabs **

3” round / 8 oz. tabs

per week

estimated for 4 month season

1
tablet

1 - 2
tablets

2
tablets

2 - 3
tablets

3 - 4
tablets

4 - 5
tablets

5 - 6
tablets

9 lbs

13 lbs

17 lbs

26 lbs

35 lbs

43 lbs

51 lbs

5 in 1 Multi-Purpose Tabs **

8 oz. tabs

per week

estimated for 4 month season

1
tablet

1 - 2
tablets

2
tablets

2 - 3
tablets

3 - 4
tablets

4 - 5
tablets

5 - 6
tablets

9 lbs

13 lbs

17 lbs

26 lbs

35 lbs

43 lbs

51 lbs

Chlorinating Sticks **

8 oz. sticks

per week

estimated for 4 month season

1
stick

1 - 2
sticks

2
sticks

2 - 3
sticks

3 - 4
sticks

4 - 5
sticks

5 - 6
sticks

9 lbs

13 lbs

17 lbs

26 lbs

35 lbs

43 lbs

51 lbs

1” Feeder Tabs **

1” round / 1/2 oz. tabs

per week

estimated for 4 month season

2 - 4 oz

6 - 8 oz

10 - 12 oz

12 - 14 oz

14 - 16 oz

26 - 30 oz

34 - 40 oz

40 - 48 oz

5 lbs

9 lbs

13 lbs

17 lbs

26 lbs

35 lbs

43 lbs

51 lbs

Concentrated Granules **

 

every 2nd day

estimated for 4 month season

1 oz

2 oz

3 oz

3 - 4 oz

5 - 6 oz

6 - 8 oz

8 - 10 oz

9 - 12 oz

4 lbs

8 lbs

12 lbs

16 lbs

23 lbs

32 lbs

40 lbs

47 lbs

Chlorinating Quick Tabs **

2 oz. tabs

per day

estimated for 4 month season

1
tablet

1
tablet

1 - 2
tablets

2
tablet

2 - 3
tablets

3
tablet

4
tablet

10 lbs

15 lbs

19 lbs

29 lbs

38 lbs

46 lbs

55 lbs

Granular Chlorinator **

 

per day

estimated for 4 month season

2 oz

3 - 4 oz

5 - 6 oz

6 - 8 oz

9 - 11 oz

13 - 15 oz

16 - 18 oz

19 - 22 oz

15 lbs

30 lbs

45 lbs

52 lbs

75 lbs

100 lbs

125 lbs

150 lbs

* The amount of chlorine you will need to add to your pool water is affected by many factors. These include high water temperatures, heavy pool usage, and heavy rainfall and pH levels of the pool water. It is important to measure your free available chlorine level often and adjust your dispenser as needed to increase or decrease the flow.

** Read labels and follow instructions carefully before adding any chlorine to your chlorinator or floating dispensers.