These vessels come complete with a manual backwashing head. With a simple turn of the handle your media will be backwashed with the water going to drain. Once the water is runing clean the handle can be turned back into "service" position. A great economical alternative for an automatic backwashing head. It is also a good option when power is not available.
All systems come complete with vessel, 1" manual valve, drain line flow control (5 gpm) riser tube and bottom screen. Media must be ordered seperately.
Dome Hole Vessels haev a filling port on the dome of the vessel. This is ideal for pH correction media as this dissolves over time and needs topping up. The filling port makes topping up easy as the head does not need to be removed to fill with media.