|Name||Drain Valve||6-Zone Replacement Cam||H2FLO Precision Series 8 ft. to 15 ft. Quarter Male Nozzle||H2FLO Precision Series 8 ft. to 15 ft. Half Female Nozzle|
|Irrigation System Component||Valve Accessory||Valve Accessory||Nozzle||Nozzle|
|View Product||View Product||View Product||View Product|
As long as your horizontal drain is pitched downward.
If I understand correctly what you are describing, it will only drain to the level of the lake. Keep in mind that when there is no water pressure in your pipe you are trying to drain, the valve is in the "open" position. As such, the lake water could back flow INTO the pipe you are trying to drain.
Line pressure is low. Mine do best on high power (50+ lb.) water lines.
I put mine on a T piece as you suggested. That piece needs to have the standard 1/2" thread. I set mine horizontally but down probably makes the most sense so that it will completely drain the pipe.