But a bit of a rough road for me starting out. Still have gotten skimmer Fully dialed in... So bought a
Tunze 3155 osmolator. After install was running great.....pump came on a few time and went right back off..( had pump in 5gl bucket with about 4 gl of fresh RO....10 min later go back in room and bucket is empty and pump running dry....The Sensor Failed!!!!!

.......messed Salinity up!!!...took about a hour to get things worked out....
I did read some other post ) some were) about people having the same issues....
Gonna call tunze and see if they will help.