Designed to fullfil 2 functions (1) removal of excess water from the pond to waste. (2) To automatically top up the pond with water should the water level fall.
In its Overflow mode the unit is specifically designed to prevent overfowing filters caused by a constant trickle or excessive rain wtaer.The unit has a level adjustment of approx 1" (25mm).
In its Top Up mode the unit is specifically designed to overcome the use of unattended hoses to add water to the pond. The unit is not WRAS approved but its design complies with WRAS requirements for using mains water to fill ponds etc. which contain faeces and other substances which could contaminate the drinking water supply
This model is fitted with 1.5" fittings, one to recognise pond water level, one for the overflow to waste. Also 3/4" inch fitting for water supply.
This unit comes with a lid.