How Many Chlorine Tablets Do You Need in Pool or Floater?

Having the right chlorine levels will determine how safe and clean your pool is. However, most pool owners always find themselves trying to figure out how many chlorine tablets they need at a given time. This is the most common challenge with chlorine tablets.

Most swimming pools will need one 3-inch trichlor chlorine tablet every 3-5 days to maintain chlorine levels. This will differ depending on the size of your pool, the amount of use, the location of your pool, and the water balance. If you use smaller 1-inch tablets or use Dichlor tablets, then you will need to increase the number of tablets.

As we seek to have a quick read through this post, we’ll get to what chlorine tablets are and how best to apply them in our pools.

Chlorine pool tablets

What are Chlorine Tablets?

As the name suggests chlorine tablets are chlorine in solid form. The chlorine type is usually trichlor and they usually come in 1 and 3-inch sizes packaged in a bucket.

The tablets contain stabilizers and are perfect to be used in outdoor pools.

One-inch tablets dissolve faster to boost your pool chlorine levels and are efficient for small pools. The 3-inch tablets are the most popularly used, less expensive, and easy to handle. Only a few tablets are required in larger pools making it the better option.

The tablets are placed in water and slowly dissolve over time to maintain desired pool chlorine levels. They require less work to disperse and are thus are cost-effective in terms of time and money.

How Do Chlorine Tablets Work?

Tablets are Considered a favorite sanitizer among private and residential pool owners due to their long life.

The tablet chlorine contains an active component trichloro-s-triazinetrione which makes the chlorine highly available and at a slow rate, for its efficiency. The rate of dissolution depends on the amount of time it’s in contact with pool water. The tablets should be as evenly dispersed as possible for your pool to be sufficiently chlorinated.

How Many Chlorine Tablets Do I Need in My Pool?

Ideally, tablets are designed to help reduce the amount of time taken on constantly checking on pool chlorine levels. Knowing the right quantity of tablet to apply at a time help pool owner reduce the risk of running high stabilizer levels, that’s besides damage to pool equipment and surfaces.

High stabilized pool would require a complete drain of the pool for new pool water. Using the Right tablet quantity, therefore, is important to save on the cost of pool maintenance.

The number of tablets you need at a time in your pool all depends on your pool capacity. Once you know how much water your pool holds it becomes easy to do your math with how many tablets to put.

Normal chlorine levels in a pool run at between 1-3 ppm (parts per milligram). A 3-inch tablet of chlorine weighs about 8 ounces (227 g), while a 1-inch weighs about 0.5 ounces (14 g). Generally, one ounce of chlorine (28.35 g) will give you 1 ppm for 7,500 gallons (34,096 L) of water.

For a 10,000-gallon pool, you will need about 1.3 ounces of chlorine to attain 1 ppm.

The table below summarizes how many tablets you need in your pool at a time.

Pool Capacity (In Gallons)3 Inch Chlorine Tablets
5,0001
10,0002
13,0002
13,5003
15,0003
17,0003
17,5004
20,0004

For efficient dispensation always round off your pool to 5,000-gallon capacity. The table offers a guide on quantifying depending on your average pool capacity.

Number of Chlorine Tablets for Intex Pools

The number of tablets you need for your Intex pool will depend on the capacity. Each Intex pool comes in different sizes and varies from model to model. In the chart below we cover how many chlorine tablets (trichlor) are needed to keep your pool sanitized to 2-3 ppm.

This will work for Intex Kiddie Pools, Intex Easy Set, Intex Metal Frame, and Intex Prism Frame.

Intex Pools (Types & Sizes)Water Capacity3 Inch Chlorine Tablets Needed
Intex Kiddie Pools
Sunset Glow Pool, 45 in X 10 in35 gal (132 L)1 teaspoon of 6% bleach
6 ft X 15 in Ocean Play Snapset Pool253 gal (958 L)Add 1.2 fl oz of 6% bleach
Swim Center Pinwheel Pool 90 in x 22 in222 gal (840 L)Add 1.2 fl oz of 6% bleach
Pineapple Baby Pool 40 in x 37 in12 gal (45 L)Add 0.1 fl oz of 6% bleach
Unicorn Baby Pool 50in L x 40 in W x 27 in H12 gal (45 L)Add 0.1 fl oz of 6% bleach
Swim Center Family Lounge Inflatable Pool 90” L x 90” W x 26” H262 gal (992 L)Add 1.2 fl oz of 6% bleach
Swim Center Shootin’ Hoops Family Pool 101 in L x 74 in W x 51 in H180 gal (681 L)Add 1.2 fl oz of 6% bleach
Rainbow Arch Spray Pool 58 in L x 51 in W x 34 in22 gal (83 L)Add 0.1 fl oz of 6% bleach
Rainbow Ombre Pool 66 in x 15 in154 gal (583 L)Add 1 fl oz of 6% bleach
Happy Otter Pool 75 in x 70 in x 24 in135 gal (511 L)Add 1 fl oz of 6% bleach
Sunset Glow Pool, 66 in X 18 in206 gal (780 L)Add 1.2 fl oz of 6% bleach
Just So Fruity Pool Set 48 in X 10 in40 gal (151 L)1 teaspoon of 6% bleach
Sunset Glow Baby Pool 34 in X 10 in15 gal (57 L)Add 0.1 fl oz of 6% bleach
4 ft X 10 in Duckling Snapset Pool74 gal (280 L)Add 0.5 fl oz of 6% bleach
8 ft X 18 in Deep Blue Sea Snapset Pool539 gal (2,040 L)1/4 tablet
Watermelon Pool 66 in X 15 in154 gal (583 L)Add 1 fl oz of 6% bleach
Crystal Blue Pool, 66 in X 15 in154 gal (583 L)Add 1 fl oz of 6% bleach
Soft Side Pool 74 in X 18 in209 gal (791 L)Add 1.2 fl oz of 6% bleach
SunShade Pool 62 in L X 62 in W X 48 in H78 gal (295 L)Add 0.5 fl oz of 6% bleach
Whale Spray Pool 79 in X 77 in X 36 in53 gal (201 L)2 teaspoons of 6% bleach
Rainbow Cloud Baby Pool 56 in X 47 in X 33 in22 gal (83 L)1/2 teaspoon of 6% bleach
PlayBox Pools 33.5 in L X 33.5 in W X 9 in H15 gal (57 L)Add 0.1 fl oz of 6% bleach
Swim Center Seashore Pool 103 in L X 63 in W X 18 in H185 gal (700 L)Add 1.4 fl oz of 6% bleach
Swim Center Family Pool, 103 in X 69 in X 22 in203 gal (768 L)Add 1.5 fl oz of 6% bleach
5 ft X 10 in Fun at the Beach Snapset Pool117 gal (443 L)Add 1 fl oz of 6% bleach
Sunset Glow Pool, 58 in X 13 in73 gal (276 L)Add 0.5 fl oz of 6% bleach
Swim Center Family Pool, 120 in X 72 in X 22 in269 gal (1,018 L)Add 1.7 fl oz of 6% bleach
Crystal Blue Pool, 58 in X 13 in87 gal (329 L)Add 0.5 fl oz of 6% bleach
Beach Wave Swim Center Pool 90 in L x 90 in W x 22 in H330 gal (1,249 L)Add 2.1 fl oz of 6% bleach
Clearview Aquarium Pool 62.5 in x 62.5 in x 19.5 in90 gal (341 L)Add 0.5 fl oz of 6% bleach
Swim Center Family Lounge Pool 90 in L x 86 in W x 31 in H156 gal (591 L)Add 1.2 fl oz of 6% bleach
Mandarin Swim Center Family Pool 90 in x 58 in x 18 in159 gal (602 L)Add 1.2 fl oz of 6% bleach
Dinosaur 3-Ring Baby Pool 24 in X 8.5 in9 gal (34 L)1/4 teaspoon of 6% bleach
48 in X 48 in X 12 in Mini Frame Pool 90 gal (341 L)Add 0.5 fl oz of 6% bleach
Intex Easy Set Pools
10 ft X 24 in Easy Set Pool813 gal (3,078 L)1/4
8 ft X 24 in Easy Set Pool Set513 gal (1,942 L1/4
8 ft X 24 in Easy Set Pool513 gal (1,942 L)1/4
6 ft X 20 in Happy Crab Easy Set Pool232 gal (878 L)Add 1.2 fl oz of 6% bleach
15 ft X 33 in Easy Set Pool Set2,587 gal (9,793 L)1/2
12 ft X 30 in Easy Set Pool Set1,485 gal (5,621 L)1/2
10 ft X 30 in Easy Set Pool Set1,018 gal (3,854 L)1/4
10 ft X 30 in Easy Set Pool1,018 gal (3,854 L)1/4
8 ft X 30 in Easy Set Pool639 gal (2,419 L)1/4
6 ft X 20 in Easy Set Pool232 gal (878 L)1/4
13 ft X 33 in Easy Set Pool Set1,926 gal (7,291 L)1/2
18 ft X 48 in Easy Set Pool Set5,455 gal (20,649 L)1
15 ft X 42 in Easy Set Pool Set3,736 gal (14,142 L)1
15 ft X 48 in Easy Set Pool Set3,736 gal (14,142 L)1
12 ft X 30 in Easy Set Pool1,485 gal (5,621 L)1/2
Intex Metal Frame Pools
8 ft X 20 in Metal Frame Pool483 gal (1,828 L)1/4
10 ft X 30 in Beachside Metal Frame Pool Set1,185 gal (4,486 L)1/4
10 ft X 30 in Beachside Metal Frame Pool1,185 gal (4,486 L)1/4
18 ft X 48 in Metal Frame Pool Set6,423 gal (24,314 L)1
15 ft X 48 in Metal Frame Pool Set4,440 gal (16,807 L)1
10 ft X 30 in Metal Frame Pool1,185 gal (4,486 L)1/4
12 ft X 30 in Metal Frame Pool1,718 gal (6,503 L)1
12 ft X 30 in Metal Frame Pool Set1,718 gal (6,503 L)1
10 ft X 30 in Metal Frame Pool Set1,185 gal (4,486 L)1
Intex Prism Frame Pools
16 ft X 48 in Clearview Prism Frame Premium Pool Set5,061 gal (19,158 L)1
18 ft x 48 in Greywood Prism Frame Pool Set6,423 gal (24,314 L)1
15 ft X 48 in Greywood Prism Frame Pool Set4,440 gal (16,807 L)1
20 ft X 10 ft X 48 in Prism Frame Oval Pool Set4,809 gal (18,204 L)1
16 ft 6 in X 9 ft X 48 in Prism Frame Oval Pool Set3,531 gal (13,366 L)1
16 ft X 8 ft X 42 in Prism Frame Rectangular Pool Set2,873 gal (10,875 L)1/2
20 ft X 52 in Prism Frame Pool Set8,638 gal (32,698 L)2
18 ft X 48 in Prism Frame Pool Set6,423 gal (24,314 L)1
15 ft X 48 in Prism Frame Pool Set4,440 gal (16,807 L)1
15 ft X 42 in Prism Frame Pool Set3,861 gal (14,615 L)1
14 ft X 42 in Prism Frame Pool Set3,357 gal (12,708 L)1
12 ft X 30 in Prism Frame Pool Set1,718 gal (6,503 L)1/2
12 ft X 30 in Prism Frame Pool1,718 gal (6,503 L)1/2
10 ft X 30 in Prism Frame Pool Set1,185 gal (4,486 L)1/2
10 ft X 30 in Prism Frame Pool1,185 gal (4,486 L)1/2

After How Long Should I Add My Tablet to My Pool

Chlorine tablets take a couple of days to be completely dissolved. This amount of time is dependent on:

  • Pool temperature
  • Method of dispensation

Chlorine tablets can therefore last anywhere from 3-5 days meaning you’ll have to chlorinate your pool every week when using the tablet.

Where Should You Place The Tablets In The Pool?

Should I just toss my chlorine tablets and forget about it till next week on the scheduled date? No! when you toss, they might settle on the pool bottom and cause staining on the concrete or liner for efficient and even chlorination of the pool the tablets should be evenly distributed with the aid of a device.

Below are some of the ways you can dispense your chlorine tablets.

Automatic Chlorinator (Chlorine Feeder)

Automatic Chlorinator

Preferably the best method is to use a tablet chlorinator, a chlorinator delivers precise amounts of chlorine to the swimming pool water. This device is purchased separately and installed as a component of the pool filtration system. It has a spot where you feed your tablets and a control knob where you can set your level of ppm (between 1 and 3).

Chlorinators come in two ways:

  • Automatic chlorinators: automatically installed permanently into the water return line
  • Off-line chlorinators: are retrofitted to a pool on a separate line that is tapped off the main supply line and can easily be uninstalled

The downside is the cost but the greatest outweighing advantage is that it gives you control over the feed rate. This allows you to have control of the quantity of chlorine dipping in your water and avoid chlorine wastage.

Floating Chlorine Dispenser

Swan-shaped chlorine floater

Pool chlorine floater is a small plastic gadget that floats on the surface of your pool. They are the simplest to use. They hold your tablets depending on their capacity and slowly release the chlorine as it wanders over the pool.

Although low budget, they are often not the best to use. They sometimes get entangled on the skimmer or just get swayed and stick in a pool corner unevenly distributing the chlorine. As they release the chlorine when static that point starts to stain on the pool liner and also starts to corrode the pool material.

Warning: always use the recommended chlorine in your floater or chlorinator. Using different chlorine could cause an explosion. Different types of chlorine are not compatible together. See our article here for more info: Can You Mix or Switch Chlorine Types? (Answered!)

Pool Skimmer

Pool Skimmer

Simply drop your pool tablet on the skimmer’s mouth. You have the skimmer already so all you need is to buy the tablets. As water is drawn into the skimmer it passes over your tablets it dissolves and gets drawn into the filtration system. The water circulates back via the return jets allowing the chorine even distribution.

It’s important to note you can only dispense via this method when your pump is running. When you stop running the pump, check out and remove removing the partially-dissolved tablets.

This will help avoid corrosion of your lines from the highly chlorinated water stuck on the filtration lines.

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