Float Switch Options

When ordering Koi Watch, you can select from either the Standard or Extended drop float switch.  These special float switches are designed to pivot above the water line eliminating problems with blanketweed etc building up around the pivot point - all so common with conventional float switches.

Standard Drop Float Switch

Extended Drop Float Switch

Standard or Extended?

Your choice of float switch will largely depend on the filter system you have installed.  The extended float switch has a longer arm and as such the water level must drop further in order to trigger an alarm than the standard float switch.  The extended float switch is therefore more suitable to systems without an automatic water top up system where the water level is likely to fluctuate with evaporation between top ups.

We recommend installing the extended drop float switch such that the pivot point is 3.5 cm above the water line.  In this configuration, the float switch will trigger an alarm when the water level drops 7.5 cm.  The standard drop float switch should be installed such that the pivot point is about 1 mm above the water line.  Given this, the float switch will trigger an alarm when the water level drops approximately 3 cm.

Please see the Koi Watch manual for more information on installation and operation.  If required, please contact us to discuss installation on your own system.