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Glass Walled Pools

At Hydrosight we distinguish between underwater windows and glass walls. A pool glass wall is a special underwater window. It is called "glass wall" as it replaces part of the pool sides. There is no support beam on the top, it is all transparent. The top of the window is just an exposed polished glass edge. So to keep the glass in place the window is mounted from the sides and also from the bottom.

This gives the visual impression, that there is not a wall at all: The pool water just ends vertically. You can look deep into the water from the outside without the distortions that you have on the water surface. And it is just a perfect shot for your Instagram when you see a swimmer behind the glass wall - partly submerged, partly above the water. The acrylic side wall can be installed with or without overflow. Overflow in this context means, that the water runs over the edge of the glazing into a drainage. The top of the glazing - as the rest of the infinity pool - sits flush with the water level. Transparent sky pools are just like that, but they usually sit on top of buildings.

A glass walled is an exciting pool feature that sets your swimming pool apart from others. It does not need to be a dream of yours - these glazings are now manufactured in quantities by a builder that stands out: Hydrosight. Consider owning such a feature for yourself - Hydrosight is a good partner for implementing your pool project!

Specialized in Underwater Glazing

To make an outstanding feature like an open top window has always been a special challenge for Hydrosight. With more than 15 years of experience and hundreds of installations we have found the best solutions for almost any kind of situation. One of the most important aspects of our glass walls are the stainless steel frames. Without these frames it would be impossible for an untrained pool builder to install a glass wall. The installation time is shorter - a fact that should be taken into account when calculating the total cost of building. The frame itself is invisible to the client, once the pool is ready. The mounting of the glass is much more discrete than otherwise possible. Most importantly the Hydrosight system is more safe and longer lasting than any competitors solution.

Please note that our glass walls for pools are not pool fences. Pool fences might also be made of transparent glazing. However pool fences are not in and under the water. Check other companies if you need this.
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Real life open top window. This window has a freeboard of approx. 10cm.

Open Top Windows

Options and Types

Product Selection

As an architect or builder you might be planning to use underwater windows for your project. Hydrosight can help you just with that.

Please take the time to look at our options to define precisely what you need. For example, what shape of underwater window are you looking for? Size? Location?

Glass Walled Pools

Open Top Underwater Windows

Glass Walled Pools

Rectangular Underwater Windows

Glass Walled Pools

Pool Skylights

Glass Walled Pools

Round Underwater Windows

Orientation of the Window

Vertical Alignment

A default feature. Is the window situated in, or functioning as one of the pool walls?

Horizontal Alignment

Is the window situated in the bottom of the pool? If so, please indicate, since this is a special feature. Commonly those windows are refered to as pool skylights.

Glass Walled Pools

explaining the difference between horizontal and vertical

Joining Windows and Waterproof Layer

There are many ways of waterproofing a containment. Each containment has at least one layer, that makes it waterproof. The underwater window is chosen according to the type of waterproofing. Here is a list of types.

Tiled Pools

The tiled pools of Hydrosight are chosen for a wide range of finishes; mosaic pool, ceramic tiles, stone tiles and thin layered pools such as AquaBRIGHT.

Tiled pool windows are installed after the concrete wall is already casted. A rebate is made on the water side of the wall, so the tiled pool window can sit flush with the wall.
The window is then moved into the rebate and adjusted. It is fixed onto the concrete by wall anchors. The waterproofing, that is used for this type of pool, is usually some kind of slurry or other spreadable substance. The waterproofing is evenly applied to the entire pool surface. Corners and edges are reinforced by seam tapes. Then the waterproofing will be applied to the steel frame of the window, thus embedding the window into the waterproofing layer. Tiles or stones or other pool finishes will be applied on top of the waterproofing.

Tiled pool windows are popular - if unsure choose for this option or request more details.

Glass Walled Pools

Hydrosight patented adhesive flange windows integrate in the pool as installation parts with a stainless steel flange

Page Not Available - intranet/installation/adhesive-flange Waterproofing Concrete with Slurry

Pools with Liner

A liner pool is built by excavating a hole, fitting a frame or shell, and finishing with a flexible PVC membrane – the liner. The liner will be wedged between flange and window, then screws shall be tightened. We call this type a vinyl linered window.

The PVC, or vinyl liner, used is similar to liners used for ponts. Underwater windows for liner pools were previously called "pressure flanges".

Exposed Concrete Pools

This type should be chosen only if concrete is EXPOSED. For finishings like ceramic tiles, natural pebble, coloured quartz, epoxy resin paints, vinyl lining choose one of the other types.

Many pools are made primarily from concrete. This can be either sprayed ("Gunite") or poured. Most pools have some sort of finishing layer, such as tiles. However, some pools are concrete only. We classify these as "exposed concrete". Exposed concrete tanks are relatively frequent in many industrial water tanks. Recently, exposed concrete pools for private leisure swimming have become popular in places like Switzerland.

The adequate window requires your concrete tank to be made from impermeable concrete and according to the building requirements of impermeable concrete. Exposed concrete windows are not suitable for unskilled installers.

As the concrete is casted and dried, and the shutter work removed, the window is already at its place, ready and waterproof. Our seam sheets and self-expanding seals stop the water from running from the wet to the dry side of the window.

Stainless Steel Pools

Stainless steel pools are very robust. These pools are long-lasting, durable, and low on maintenance. Stainless steel pool windows are a natural environment for Hydrosight's underwater windows. That is because Hydrosight's windows have an INOX frame. The windows for stainless steel pools are seal welded into the prepared opening.

Custom Types of Waterproofing

Other types of less common pools types:

  • Fibreglass pools: Glass-Reinforced Plastic (GRP)
  • PVC pools: Pools that are made from hard PVC, like the pools made from KWS. Hard PVC pools are not to be confused with soft PVC liner pools.
  • PP Pools: Polypropylen, often about 20mm thick

How to Install?

Planing and Preparation

For each of your window requests, Hydrosight will provide the technical drawings needed for the concrete work of the pool, i.e. the opening for the window. This allows you to plan accordingly on the installation and/or construction procedure.

In the meantime, the windows will be produced. They shall be ready for shipment just when you need them on the site.

Installing your First Underwater Window

You are a pool builder wishing to install a Hydrosight product. As the water body contractor in charge, you are new to installing underwater windows. Hydrosight makes this an exciting experience for their customers by providing a full service support. Beginning with unpacking the Hydroview installation kit, you will notice that all steps of installation have been prepared for you.

The Hydroview installation kit includes:

  • The underwater window(s)
  • All installation material needed
  • Work drawings providing installation dimensions (available in advance as PDF)
  • Installation manual in English (available in advance as PDF)

This makes it easy and secure to fit our windows, without the need of special skills, or silicone sealing.

Hydrosight On-Site Installation Service

Looking for full service, ease of mind and value for price? Hydrosight is the right place.

If you feel uncomfortable with installing the underwater windows yourself, or if you lack of the appropriate fitters, you can ask for installation services by Hydrosight. You might choose Hydrosight for in-house installation services and rely on our experienced team of fitter, available on demand on (almost) any location in the world.

Price, Shipping + Delivery

  • Hydrosight manufacturing enables you to choose exactly the size needed.
  • The sizes in the list are just examples.
  • The depth ratings in the list are just examples
  • Our window delivery includes the necessary installation material.
  • Shipping world wide or for collection in Emmerich, Germany. Excluding packaging and delivery
  • Lead time approx. 8-12 weeks. Please inquire for details with your order.
  • For estimating the cost of your glass swimming pool you can check our recently finished projects. Many of the projects we present include cost estimates.
  • You may also want to check the special offers on our home page.
  • For detailed offers or price estimates use our special contact form. We will get back to you asap.