Jump Into the Pool, But Avoid Slipping

Providing a safe swimming space for summertime fun in Düsseldorf, Germany; by installing a heelproof trench drain system. 

Read the original post on ULMA’s News site by clicking here.

Ulma Architectural provides drainage solutions for a variety of applications and is known throughout the drainage industry for their high quality and reliable products. To tell us more about Ulma trench drain systems, Irene has provided TDS a guest blog regarding one of these dependable items, the lightweight yet sturdy modular system called the Hydroplus.

Jump Into the Pool, But Avoid Slipping

Today we have a  novelty that I want to present, but before that, let me tell you a summer story.

Screaming children playing, splashing water, buzzing mosquitoes, the smell of sunscreen  and a lot of heat. I am sure you have no trouble guessing where we are. And it isn’t  hard to recall a funny memory from your childhood where all this was happening (now you’re smiling like me 😉 )?

It can be a beach, a lake or a wonderful swimming pool. The choice is yours. Everyone has their own preferences, but no one doubts that the best place to cool off in summer is in the water, or in the shade, of course.


Today we are in a swimming pool in Düsseldorf, where we have just installed ULMA channels with composite grating and I am going to tell you the reasons why we have installed these and not others

Let’s start by noting that on the beach or in the pool, it is normal to go barefoot. Whether we like it or not, especially children. That is why it is important to choose a surface that is as smooth and pleasant to walk on as possible.

ULMA composite gratings have a smooth and soft surface, but they also have grooves with a short distance between them. It is like walking on a smooth dancing floor.

What is this feature useful for?

To prevent anyone from slipping a finger or a heel through the openings when walking over them. We call this the anti-heel feature. And as you can imagine, they prevent more than one trip

Another reason for choosing them is that, as they are made of composite, they do not rust, so neither time nor water spoil this model. This can happen with gratings made of other materials, such as cast iron or galvanized, but not with this one.

ULMA Hydroplus - 494 Pool Install-Dusseldorf

We have talked about the gratings, and now we are going to talk about the channels that have been installed, which are the Hydroplus channels, made of polypropylene, light and resistant channels with a modular and robust design, designed for load classes up to C-250 according to the EN-1433 standard.

  • High Drainage Capacity
  • Easy Customization
  • Tongue and Groove Assembly
  • Neutral/Straight Channels
  • High Chemical Resistance
  • Temperature Rating -20ºC (-4ºF) to 80ºC (176ºF)

This family of channels is available in different (internal) widths of 100mm and 200mm and are compatible with the full range of gratings available for polymer concrete channels.

With these channels and gratings, no matter who you ask, everyone is happy:

Pool users, because they don’t slip or trip.

The maintenance workers, because as they do not rust, they do not need maintenance or replacement as often.

The builder, because of its competitive price and speed of installation.

The designer, because of their hydraulic capacity, resistance and safety.

As you can see, as well as avoiding accidents, we manage to efficiently drain the water that comes out of the pool with each jump and leave everyone happy, like a good dip in the water in summer.

If you have a pool project in hand or any other type of drainage need, we are sure we can help you.


ULMA  for people by people –

The experts at TDS can help you find the right drains to fit your plan and budget. Contact us for a free quote or for further information on drainage solutions visit TrenchDrain.com or DrainageKits.com.

You can also visit our virtual trade showroom that focuses on drainage solutions in areas with residential or commercial pools, spas and hot tubs.



Phone: 610-882-3630

Email: [email protected]

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