Fiberglass pool preparing after winter in 5 steps

Fiberglass pool cleaning after winter period is a very important activity. If we do it carefully, we will have peace of mind throughout the summer and our pool will retain its perfect appearance for many years.

The quality of the fiberglass pool determines the level of difficulty in keeping it clean.

After the winter period, the fiberglass pool can be heavily soiled. I show it in the video below. The water left in the pool turns green. Green sediment covers the walls, bottom and stairs. In addition, depending on what type of pool cover you have, soil, sand, leaves, mud, insects, etc. get into the pool. In my case, despite the pool enclosure, which is closed all winter, there is still a lot of dirt in the pool.
There is, however, one thing that I want to emphasize once again. If the gelcoat from which the polyester pool is made, the dirt does not penetrate into the pool walls. After cleaning, its surface is still perfectly smooth and shiny. This gives great satisfaction to the owner of the pool. In my several years old pool, the surface is in perfect condition and the pool looks great both empty and filled with water. You will see it in the pictures below. And here You can read about high quality materials and technology used in fiberglass pools production: BÜFA technology

polyester pool cleaning after winter

Step 1: Draining water from the fiberglass pool

It is best to use a submersible pump and a hose with a length of at least several meters for this purpose. At the same time, the level of groundwater should be monitored and in the event of their inflow, water should also be drained from the drainage well. Groundwater pressure can be dangerous for a drained pool.

Step 2: Spray the surface with cleaner and rinse with a pressure washer

In my experience, cleaning agents for all sanitary devices work best for cleaning a polyester pool. I use an acidic, liquid concentrate that does not damage the surface. It perfectly removes grease residues and general impurities. I spray it on the surface to be cleaned and then spread it with a pool cleaning brush. I let the solution work for at least 5 minutes and rinse with a pressure washer.

Rinsing the walls of a polyester pool with a pressure washer

Step 3: Collecting dirt from the bottom of the pool and wiping the surface dry

The pump will not select water until the end. There will be about 2 cm of water at the bottom. It is best to collect it along with the dirt that has settled on the bottom with a rubber tipped scoop, so as not to scratch the surface of the pool. We collect water in a bucket. I always have a dozen or so buckets. Then I wipe the pool dry and admire the smooth and shiny surface of my polyester pool.

Step 4: Pouring fresh water into the pool

Depending on the water pressure at our disposal, filling the pool will take from several to several hours. In my case, the water pressure in the garden was so low that I had to use an additional pump, which worked great. I currently have no problems getting my garden sprinklers pressurized and it takes about 5 hours to fill my pool. You can see the end result in the photo below. In my white fiberglass pool, the water has a beautiful turquoise hue. The whole thing looks great.

Fiberglass pool white rectangular filled with shining water
Fiberglass pool white rectangular filled with shining water

Step 5: Connecting swimming pool devices and setting appropriate water parameters

You can read more about how to run a fiberglass swimming pool in detailed posts. The pool prepared in this way is fully suitable for use.

I hope that the information provided will be useful for you and that you have seen that the preparation of the pool basin is not complicated and that all the work can be done in one day. And the end result is more than satisfactory. Write in the comment if this content is useful for you and let me know if you need any additions.

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