Recirculation Circuit; Recirculation Circuit In Spas With Overflows - Iberspa INGROUND SPAS Manual De Instalación Y Usuario

Inground Spa Manual EN

2.2. RECIRCULATION CIRCUIT

The function of this circuit is to maintain the quality of the Spa water. This is achieved by means
of water recirculation through a purification filter, a heating system and a disinfection system.

2.2.1 Recirculation circuit in Spas with Overflows

Given that the Spa has an overflow, it is essential to maintain the water level constant and at
maximum level. In order to achieve this, it is necessary to install a balance tank installed in
series with the recirculation circuit. Doing so will compensate the fluctuations in level caused by
variations in the number of bathers.
Although there are different ways of setting up the recirculation circuit, we proceed to detail the
two most popular systems: "Floor suction" and "Floor return". Check the regulations in force in
each country in order to establish which system is best.
OPTION A: SPA FLOOR SUCTION
This option makes it possible to collect part of the recirculation water from the Spa floor drain.
The filtered water is absorbed both from the balance tank (mostly) and the Spa floor drain via
the filter pump, and is directed towards the sand filter, the heating and the ozonator or
disinfection system; to be directed towards the Spa via the return nozzles.
Fig. 3 Recirculation diagram of Spa with Overflow Option A.
9