Circular drain for in-situ swimming pools

The circular drain for a concrete swimming pool  It is designed to be integrated into the pool floor and form part of the installation’s hydraulic circuit. Its function may vary depending on the project: it can be used as a bottom suction point, to assist with recirculation or as a drainage element, provided that the hydraulic design and the pool’s safety requirements allow for this.

The current Trypool product specification confirms that it is made from ABS, features UV protection and corresponds to the SUMR model number. The brand’s catalogue also specifies a 2″ connection for this version.

Integrated circular cover

Its circular cover protects the top opening of the unit and ensures a seamless finish at the bottom of the pool.

The cover must remain securely fastened during operation. If it shows signs of breakage, deformation, looseness or missing fastenings, it is recommended that the circuit be shut down until the affected components have been replaced or repaired.

The available documentation does not confirm that this is an anti-vortex cover. Therefore, this feature must not be included in the marketing material, images or technical specifications until there is a specific certificate or data sheet to support it.

Installation in concrete swimming pools

As it is designed for concrete swimming pools, it must be installed during the construction or refurbishment of the pool, before the final lining is completed.

The professional must check:

• Position inside the glass.
• Connection orientation.
• Pipe diameter.
• Expected flow rate.
• Accessibility of the water supply network.
• Compatibility with other extraction points.
• Recess depth.
• Contents of the supply.

It should also be confirmed whether it includes screws, gaskets or other fittings, as the current page does not list them.

Selection based on the hydraulic circuit

The 2″ connection alone does not determine the permissible flow rate.

The maximum flow rate will depend on:

• Internal design of the gully.
• Water velocity.
• Pump specifications.
• Pipe length.
• Number of elbows and valves.
• Pressure drops.
• Number of extraction points installed.

For this reason, the selection must be based on the hydraulic design and the full technical specifications.

Maintenance – Circular drain for in-situ swimming pools

To ensure the product remains in good condition, it is recommended that you check the lid regularly, remove any accumulated dirt, check that it is securely fastened and look out for any cracks or leaks.

Installation, commissioning and maintenance must be carried out by professionals; do not use the drain if the cover is missing, incomplete or damaged.