osmoregulator

[gregt]

Roger,

Would it be ok to put a check valve on the output so that the end can be placed below water level without fear of siphoning?

 

[rvitko]

Hmm, I wouldn't do it just because check valves are not forever and gravity is, baring some strange cosmic phenomena which would likely eliminate any worries about it anyway

If I was to try anything I would put a T in line and run two lines- one into the sump and one up to a point higher than the delivery point to act as a siphon break- it would take in air through this line and break the siphon. This would be experimental but more reliable if you could get it to work. You can get all sorts of neat fittings for this line in the drip irrigation section of a hardware store, I bought a kit of drip fittings at Lowes and modified an Osmolator into a rain system for a dart frog terrarium once and you can really have alot of fun with this stuff. Norbert Tunze used to have one rigged up to irrigate his orchids as the hydroponic tray drained past a certain point it turned on the pump and refilled the tray. He also had 2002 Turbelles converted into bench mount screwdrivers that were photo activated so the amount of fun you can have with Tunze toys is endless.

 

[gregt]

Gotcha, that was my fear also. I'm not real fond of the vent idea either, although it would probably work ok. To feel comfortable, I would proabably want to make the vent higher than would be practical.

 

[rvitko]

I thought about it some more and thought you could put a backwards check valve on the end of the to let air in but no water out and then just position it over some sort of trap or sump should it fail

 

[gregt]

There ya go! :thumbsup: