Carlson surge device mode trigger.

[Young Frankenstein]

Water falls in the cup from the overflow, raises tube and air goes in till water drains from the bottom of the cup.

 

[kgross]

Lets see the rest of it.

 

[bige]

I would like to see more too. Why not just let gravity do the work. I thought no moving parts was the point of a Carlson.

 

[Reef Breeders Verified Sponsor]

Looks interesting, +1

 

[revhtree Verified Admin]

Cool! Any video?