Best Chlorine Tablets For Swimming Pools

Best Chlorine Tablets For Swimming Pools

The large 3 inch tablets are the best chlorine tablets for swimming pools. The 3″ tablets are the most popular chlorine tabs used to help maintain clear sparkling pool water. It’s the primary chemical for keeping your pool water sanitized.

They are approximately 1″ thick to allow the them to dissolve at a slower rate and last longer. The chlorine pucks fit perfectly in the floating chlorinators also the off-line and in-line automatic feeders.

best chlorine tablets for swimming pools

Get The Best Deal On Cheap Chlorine Tablets Without Sacrificing Quality

The chlorine comes in various size containers but the 50-pound bucket of three-inch tablets is going to be your best buy. One thing’s for sure, your pool will need the tablets and most brands wrap each individual tablet to keep the fumes down and water out. Most brands are equal but the cheapest chlorine tablets for pools is not always the best. They will have more paste and the quicker they will dissolve and turn to mush.

So, it pay’s to get a good brand of tablets. A few we would recommend are the In The Swim chlorine tablets and Nava brand. Leslie’s offers a really good tablet too. There’re are other brands in the marketplace that are just as good.

One thing to remember, chlorine tablets is an oxidizer and have acid in them, so you want to be careful where you store them. If you keep them in your garage they will probably rust some of your metal objects over time. Even being kept in the bucket. You can store the chemicals outside and there’s no problem with water getting in the container if you have the lid on tight.

Best Place To Put Chlorine Tablets For Swimming Pools

One of the most common places to put the Trichlor 3 inch tablets is in a floater. The floating chlorinator goes in your pool and floats around dispersing the pool chlorine.

You may be asking, how many tabs should you put in the floater each week?

Well, it depends on a few things, how warm is the water, the amount of gallons in the pool, the bather load, the cyanuric acid levels (stabilizer/conditioner). As a general rule of thumb, one to two tablets per 10,000 gallons of water. For large pools just fill it up with more than you think you would need because you would like some left over at the end of the week when you check the floater. You don’t want to run out of chlorine and let the free chlorine levels drop because the pool will begin to develop algae.

floating chlorinator


The tablets are corrosive and have an acid in them, so overtime, they will eat through the chlorinator. If you look at the bottom of the floating chlorinator you will see that you can adjust the amount of chlorine that is allowed to disperse in the pool. Most floaters have an adjustment like this or has holes in it so you can control the amount of pool chlorine dissolving in the pool.

If you need a new floating chlorinator or replace your existing one Click Here for a variety to choose from

If you have a large pool (20,000-25,000 gallons) put several tablets in the floater. It should keep a residual of chlorine in the pool. It’s very important that the lid locks into place on your chlorinator. If your lid is no longer locks in place you will want to replace it right away.

You need to know how to maintain your pool properly, so don’t let any tabs sit on the bottom of the pool for any length of time. If just one tablet was accidentally allowed to sit on the bottom of the pool, it would leave a real nasty stain on the pool surface. Because the tablets are highly corrosive it’ll actually stain the plaster or bleach out a spot in a vinyl lined pool.

Swimming pool care involves a lot of things. One thing you don’t want to do is use your skimmer as a chlorinator. The tablets are highly corrosive and have acid in them. What will happen when the pool turns off – the chlorine and acid levels from the tablets build up in this small area. So, when you turn the system on that high concentration of chlorine gets sucked through your equipment and overtime it could cause corrosion in your pools circulation system. There are metal components inside the pump and in some filter systems. They will be effected overtime resulting in repair and replacement costs.

One thing to watch when using a floating chlorinator, make sure the chlorine dispenser doesn’t sit on your steps, get stuck at the skimmer or sits in one corner and never moves around the pools  surface because it will stain, erode the pools plaster or bleach out a vinyl lined pool. If it does, you might look at installing an in-line or off-line chlorinator.

The trichlor tablets have acid in them so your pH will tend to drift to the low end of the pH scale. Since the tablets release acid as they melt if you have a vinyl or fiberglass pool you will definitely want to watch the pH levels. To keep your pH from bouncing around, first get your total alkalinity in the correct range (80-120 ppm). This will help balance the pH and keep it from drifting.

If the pH is above 7, the water is basic; if it is below 7 the water is acid. The optimum pH for pool water is 7.4, since this is the same as the pH in human eyes and mucous membranes. A pH of 7.4 also gives good chlorine disinfection.

The best chlorinators for the best chlorine tablets for swimming pools

Another way to properly maintain chlorine in a pool is to add the 3″ tablets into an off-line or in-line chlorinator. The three inch tablets fit perfect in the Rainbow automatic chlorinators.

It’s the most efficient way to actually get the tablets to dissolve and to distribute the chlorine more effectively in your pool. If you add the tablets on a regular basis and check the chlorinator at least once a week you should be able to maintain a chlorine residual in the pool.

The trichlor tablets melt really slow in this type of chlorinator and the amount being disbursed is easily adjusted from the flow control valve on the side of the unit. After putting tablets into a chlorine feeder, I like to get all the air out of the canister.

To do this, with the cap still off turn the pump on, open the adjustment valve to allow water to flow into the canister. Let it fill to the top and then close the flow control valve. Put the lid back on and adjust the valve to your normal setting.

During the fall months when the water cools down it doesn’t take much chlorine to maintain the proper chlorine levels (2.0-4.0) in a pool. It takes more chlorine during the summer months when the water is warmer and the sun is beating down on your pool.

It really helps to maintain a good level of stabilizer aka conditioner in the pool (30-50 ppm) to make sure the chlorine is not being depleted by the intense sun. This is why you should run your system during the hotter daytime hours.

The trichlor tablets have stabilizer in them so you won’t need to add a lot of conditioner to your pool. Be sure to have a test kit that will measure all the elements needed to maintain your pool or bring a water sample to a reputable pool store to have it properly tested.

If your pool runs year round you will need to add various chemicals periodically to maintain proper water chemistry. This is just good swimming pool care. The water chemistry changes all the time because of the weather, bather load and surrounding conditions.

Swimming pool care should not be taken lightly. It’s very important to properly maintain the water chemistry for the health and safety of everyone that uses the pool. Not only for health reason but also for the longevity of your pool equipment and the pools surface and structure.

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