Why choose stainless steel for swimming pool equipment?

Why stainless steel for swimming pool equipment?

The selection of the proper machinery for safety-related aspect in pool building and upkeep is every pool owner's top priority. Specifically, stainless steel has become popular in pool construction, given its endurance and decorative advantages. The primary objective is to ensure that  the equipment maintains its initial appearance throughout its lifespan.

S.S. has been utilized extensively with success and popularity in a good deal of swimming pool applications, including: skimmers, inlets, main drains, LED lighting, waterfall, countercurrent, and so forth. The corrosion resistance, appealing appearance, and low maintenance requirements make it a fantastic choice for these applications.


The skimmer is designed to sweep impurities and detritus that settle on water's terrain, such as leaves, insects, and oils. This keeps the pool sanitary and clean while safeguarding the pool's equipment from harm.

AstralPool Slim Skimmer Behncke Slim Surface Skimmer Behncke ultimate surface skimmer


The inlet contributes in regulating the water inflow into the pool, ensuring every drop flows evenly and avoiding any regions of water. This is vital to guarantee that swimmers have a pleasurable bathing encounter while ensuring the swimming pool is kept in good condition.

AstralPool return inlet
Behncke cube inlet behncke cover floor noozle inlet

Main Drains

Without significant drainage a pools' drainage circulating mechanism cannot function efficiently the deep end of the pool has drains that sustain flow to keep the water pristine to distribute chemicals as effectively as possible while maintaining water temperature consistently by the main sewer the pump collects the wastewater from the pool which is subsequently filtered.

AstralPool Stainless Steel maindrain behncke floor drain 240 round AstralPool square maindrain

LED Lights

Swimming at nighttime is made safer and more pleasurable with subsurface illumination. Along with rendering it simpler for swimmers to see at night, it also offers improved vision for keeping an eye on others, particularly kids.

Atecpool LED Light AstralPool LumiPlus Pentair Intellibrite 5G

Let's explore their characteristics to see why they stand out among contemporary pool structures and components.

Stainless steel is undoubtedly an excellent choice for installation not only in your pool shell machinery but the entire pool system, for the reason that it will give you quite a while without the constant upkeep and repair issues that come with traditional pools. It is waterproof, resilient, and robust yet flexible. It doesn't crumble, peel off, split, shrink, or become porous. Even while the expenditures are somewhat greater, the minimal maintenance needs will probably end up saving you money over time.

The majority of people would be wary of utilizing metal in their equipment, but the main concern would undoubtedly be rust and corrosion problems. In contrast, stainless steel that has been properly graded and treated would be incredibly durable and resistant to the harmful effects of the chemicals found in aquatic environments.

Stainless steel’s resilience

Its resistance to corrosion comes from a layer that forms instantly in an oxidizing environment, whether it be air, water, or any other liquids containing oxygen. In a mild aqueous environment, this protective coating encapsulates the metal and guards it against further corrosion and degradation from other tainting agents. It can also be burnished to a smooth finish, with grades ranging from a basic 3 to a high-shine rating of 7. Superior resistance to magnesium halide salts, which are present in pool water, is produced by the smooth finish. When splashed on and allowed to evaporate on the steel, the halide salts do the most damage. The halides would be more likely to become stuck in the ridges and grooves of a rough surface, where they would then be allowed to wreak havoc.

Sleek and flexible design

The only thing stopping you in terms of design aesthetics may be your creativity! In a sense, yes. Because steel is a flexible material, it can be rolled into almost any shape or size that is required. Furthermore, it is relatively lightweight when compared to traditional pool building materials, opening up additional engineering options to support more complex pool designs.

Neatness, endurance and longevity

Due to its smooth, nonporous surface, it is extremely hygienic and requires very little care. Because of the material's resistance to corrosion, it has a long lifespan, limits the growth of microorganisms, and is much simpler to clean and maintain. Stainless steel is available when utmost cleanliness is required. Additionally, Due to its forgiving qualities, stainless steel can be more flexible as environmental circumstances change and fluctuate. Even after years of usage, with proper care, the material will not leak, crack, peel, rust, or require repainting or refinishing. Choosing stainless steel means going with the material that will last the longest and require the least upkeep.

What do you think is the reason why buildings and bridges are made of stainless steel?

Getting too much information? Hold on, this is not over yet!

Standard AISI 304 and AISI 316 are commonly used for too many swimming pool applications. Let’s figure out the difference of these two.

Because both AISI 304 class steel and AISI 316 class steel are polished, grained, and finished in the same way, there is virtually no visual difference between them.

It can be expressed plainly as follows: 304 has 8% nickel and 18% chromium. AISI 316, on the other hand, is made up of 2% molybdenum, 10% nickel, and 16% chrome.

In our layman’s term, what sets S.S. AISI 316 apart from S.S. AISI 304 is its enhanced erosion resistance, especially against chlorides [such seawater and de-icing salts].

Class 304 austenite steel is thought to be the most useful and well-liked variety. As it can meet a variety of physical criteria, this sort is ideal for use in storage tanks, culinary appliances, and wheel covers. Despite offering significant resistance to moderate acidic assault, it is regarded as inferior to the AISI 316 steel type.

Nevertheless, S.S. 316 is considered to have superior corrosion resistance and be more heat-resistant than 304 grades steel due to the presence of the molybdenum element.

It is believed that 316 is considerably more resistant to numerous chemical solutions, including sulphuric acid, bromides, and iodides.

Stainless steel overflow grating Stainless steel waterfall Stainless steel skimmer

Let’s Wrap it up

For uses involving swimming pools, S.S is an appropriate apparatus option as long as the grade and surface quality are selected to provide the best possible corrosion resistance.

Contrary to popular belief, steel can corrode if it is not properly maintained. Use chemical agents, automatic dosing machinery, or saltwater chlorinators to maintain clean, pH-balanced water to prevent corrosion.

  • The following limits should always be observed for reagent and water levels:
  • Ph: 7,2–7,6 with a maintenance cycle of every day/week
  • Total alkalinity (TA) ranges from 100 to 175 ppm control every month.
  • Calcium hardness: 150–300 parts per million, semi-annually
  • Weekly TDS (just electrolysis): 6,000 ppm
  • 0,5 to 2,0 ppm (Cl) of residual chlorine daily or weekly
  • Stabilizer (C & A): maximum concentration of 30 ppm when ORP regulation is employed; maximum concentration of 75 ppm when manually chlorinating with chemicals (twice a year).