Winterizing your pool helps to protect it from freeze damage. It also keeps the pool cleans and saves you a lot of cash when you finally decide to open it.

As a pool owner, you need to take care of your investment by treating and cleaning your swimming pool at the end of every swimming season. Closing your swimming pool with the right pool winterizing chemicals will make the opening process much easier in spring.

Even though most of the pool manufacturers are now producing their own swimming pool winterizing chemical kits, you still need to do research on each of these kits to ensure that they contain the appropriate chemicals.

What Happens When You Don’t Cover Your Pool for Winter?

Unfortunately, getting your pool ready for the winter season is not optional. Failing to do so makes damage essentially inevitable. The things that frost can quickly ruin can prove costly to repair come summertime next year and avoiding such issues altogether is definitely the way to go. Here are a few of the main threats your pool will face should you not prepare it for winter:

First of all, your pipes are quite likely to burst thanks to frozen water swelling inside them. This is more likely with pipes positioned closer to the surface of the ground than buried ones.

Pumps with water in them are subject to the same dangers and even heaters are vulnerable to the threat that especially low temperatures pose.

The same goes for filters and entire above-ground pools, which fall apart under the weight and stress of ice.

Basics for Winterizing a Pool

Whether you have an aboveground pool or an inground pool, there are some basic steps which are common to all types of swimming pools.

One of the most crucial steps in the entire winterizing process is emptying the pipes in the pool and properly sealing them with air to prevent freeze damage and cracking.

What’s more, winter chemicals for swimming pools should be added to maintain the right water pH balance and prevent the growth of algae. The pool should also be drained to lower levels and covered.

Objects like balls and life rings should be placed on the water before covering the pool to prevent the pool cover from freezing and sticking to the water.

What Chemicals are Needed to Close a Pool For Winter?

To ensure you have all the pool winterizing chemicals, you need to buy a pool winterizing kit. With the right chemical composition, you can be sure that your swimming pool will survive the winter and be in perfect condition for the spring.

Here are some of the main winter chemicals that are needed for closing a pool:

1. Winter Pool Shock

Before closing your pool, you need to shock it to eliminate any undesirables in the pool water. However, you should first give your pool a thorough clean and remove all the waste and debris before shocking.

Ensure that the water’s alkalinity and pH levels are balanced. For best results, keep the alkalinity between 80-120 ppm and the pH around 7.0.

If you have a vinyl pool, it’s advisable to use a non-chlorine pool shock as it won’t leave any residue nor harm the vinyl liner. For plaster pools, a concentrated chlorine shock may damage its finish. Ensure you dilute the chlorine before using it.

Carefully read the manufacturer’s instructions for proper dosage. If your pool has visible algae growth, you can double the chlorine dose.

It’s best to shock your swimming a few days before closing. This is to make sure that the chlorine shock doesn’t attack the pool cover or the algaecide.

2. Winter Pool Algaecides

There are several types of algaecides – from winter algaecides and summer algaecides to weak and strong algaecides. The type of algaecide you use will depend on your pool’s size, its likelihood to grow algae, as well as the season.

In addition, your winter cover will also determine which algaecide to us. If you have a new solid pool cover, you can use a less potent algaecide. But if you have a mesh cover, a stronger algaecide is recommended.

If you are using a copper algaecide, don’t overdose it, especially if you have a plaster swimming pool. These algaecides can permanently stain your pool. However, the staining potential is less for vinyl swimming pools. It’s recommended to use a pool stain preventative if you are using copper algaecides.

3. Stain and Scale Chemicals

Stain and scale chemicals are used to prevent metal and mineral staining. These winterizing chemicals should be added before lowering the level of the pool water so that they can quickly dissolve and distribute throughout the swimming pool.

If your pool water has high levels of copper, magnesium, or iron, these chemicals will keep the minerals in their solution form and prevent them from staining. And if your pool is high in calcium levels, the chemicals will also keep it in solution form and prevent them from mixing with organic debris in the pool, which makes the pool look really dirty.

4. Enzymes for Winter

If you are using a mesh pool cover for the winter, algae, tree sap, pollen, acid rain, and all sort of pollutants are capable of washing into the pool. Winter pool enzymes help to eliminate bacteria and oils from the water by consuming them. And because the enzymes consume these contaminants, the winterizing chemicals that you’ll apply will work more effectively.

Moreover, if you are generally lazy when it comes to pool maintenance, a pool enzyme treatment will easily take up the slack.

Protect Your Swimming Pool This Winter with a Winterizing Chemical Kit

That’s about it for pool winterizing chemicals.

If you want your pool to last for years, it’s important to close it when winter approaches. You may pay a little bit more upfront, but you’ll definitely spend less and save time when opening your pool for the spring.

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