What is the annual cost of filling a pool and sanitizing the water?

Are you thinking about having a pool built, but still wondering what the annual budget will be? We are here to help you find out this information! Following our analysis of the annual cost of electricity consumption for a pool, let’s look at the costs associated with water and maintenance of the pool:

Filling the pool:

Size of the pool basin.

Unsurprisingly, the cost of filling your pool for the first time obviously depends on the size of your pool.

This filling operation must in theory only take place once because you don’t need to empty your pool entirely after this.

Choice of water

We advise you not to use water from a well or a borehole to fill your pool: this is raw water and has not been through the same treatment processes as tap water. The savings you believe you will make in water costs will be significantly overshadowed by the additional products required for your water maintenance later on!

Do you suspect a leak?

Is your water level dropping inexplicably? Do the bucket test: Fill a bucket with pool water and place it on a step in your pool, partially immersed. Make a mark inside your bucket at the level of the water inside it, then mark on the outside of the bucket the pool water level. Evaporation should be the same both inside the bucket and in the pool 24hrs later.

Periods of peak water consumption over the course of the year:

Evaporation and splashing in the summer

A more or less significant proportion of the volume of water in your pool disappears due to evaporation over the course of the summer, a result of the sun and the wind. This may increase if your guests enjoy splashy times.
Our tip for limiting evaporation of the water in your pool: install a pool cover!

Passive winterizing

Your pool must be partly emptied down to the level of the return fittings to make passive winterizing easier. Be careful: never empty the entire pool, this could permanently damage the structure of your pool!
When you re-activate your pool in the spring, you will add approximately 1/4 of the total water in your pool basin. An accumulation of certain products (pollutants) in the water is therefore avoided.

Pool basin maintenance:

Lastly, the cost of maintenance of your pool basin will depend on the water treatment method and type of products that you choose.

Chlorine treatment

The annual chlorine budget for a pool is € 150. Add € 30 to this for anti-scale products, € 30 for products to adjust the pH, and € 20 of flocculant if you use sand filters.
Total: € 230 on average.

Bromine treatment

For bromine, the annual budget is around € 200, then add € 30 for anti-scale products and between € 10 and € 20 for products to adjust the pH, given that bromine is less sensitive to the pH than chlorine.
Total: € 245 on average.

Salt chlorination

If you want a pool with a salt chlorinator, in addition to the initial cost of the salt chlorinator which is recovered over several years, the annual budget for salt is approximately € 10 (excluding initial commissioning), which is simply the cost of a 25 kg bag of salt. Be careful: in order to protect the equipment, the cell must be replaced regularly (every 3 to 5 years depending on use). Add € 30 to this for anti-scale products, € 30 for products to adjust the pH, and € 20 of flocculant if you use sand filters.
Total: € 90 on average per year.

To finish off, don’t forget that the attention you pay to the condition of your water all year round will also be an essential factor!