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D-D Top Up System 3 Pin Plug



Top-up System With Mains Outlet Supply

Effective in Controlling Evaporative Loss.

In salt water systems the loss of water from a tank is by evaporation and this is of fresh water only, which will increase the salinity within the aquarium. This can be automatically replenished using a float switch and controller such as the D-D Multi Function Float Switch System. As the float switch rises and falls it switches the controller on and off, which in turn controls a pump or solenoid to top up the lost water.

This unit can be operated with any suitable 230V pump or solenoid valve in the same way as the low voltage units described in this document. It can also be used in conjunction with other equipment such as an audible alarm or similar.

For evaporative top up operation install the pump in a fresh water reservoir or similar container and connect the clear hose to the pump outlet. The other end of the hose should be inserted into the hole that has been provided on the mounting bracket. Ensure during normal operation that this end of the hose does not terminate beneath the water level, as this will cause water to back siphon once the pump is switched off.