Hydro-Logic Float Valve for Big Boy Commercial Water Filters you need pH-Down

you need pH-Down

This trough collects runoff then directs it toward the bulkhead recess to reduce standing water

bacterial diseases and is even effective on troublesome and difficult to control fungal diseases such as pythium and phytophthora

Comes in a heavy-duty

and 20 GPH so you can find your desired flow rate

Hydro-Logic Float Valve for Big Boy Commercial Water Filters you need pH-DownThis heavy duty, non corrosive PVC float valve is a standard bulkhead tank mount unit with a 0. 48 in orifice?valve. It allows you to fill your tank or reservoir unattended. Adjustable water level. Never flood your garden again! Construction:?NSF approved PVC, 18 8 stainless steel hardware and Santoprene?? rubber replaceable seals.