Osmolator 3 - does it have a solenoid built in to prevent siphoning?

[danreef55]

Considering this unit for ATO. If my top off tank's water level is higher than the sump, will it siphon when the pump turns off. The reason I am asking is the Hydros ATO has a big red note stating that you should never have the freshwater vessel above the sump. Would the solenoid do the trick? I guess I could create an anti-siphon loop. If you have one how do you like the unit?

Thanks
Dan

 

[Formulator]

It does not have a solenoid and will create a siphon. You could add a float valve to the end of the water line and as a bonus you then have an added layer of fail-safe in case the osmolator system malfunctions and gets stuck on. Or you could mount the water line higher up in the sump, or even to the top of a piece of PVC or rigid airline sticking up out of your sump.

 

[danreef55]

Thanks for the advice

It does not have a solenoid and will create a siphon. You could add a float valve to the end of the water line and as a bonus you then have an added layer of fail-safe in case the osmolator system malfunctions and gets stuck on. Or you could mount the water line higher up in the sump, or even to the top of a piece of PVC or rigid airline sticking up out of your sump.

 

[Dburr1014]

I have the original but put a tee in the line with a check valve. When water pumps it pushes against the check valve(the tee'd section) and water flows. When it shuts off, if by chance it starts a syphone, the check valve opens(sucks in air).

 

[C_AWOL]

If you don't mind utilizing any solution, you can run the ato line higher than the sump and feed it into a piece of pvc as mentioned by formulator.
That's a sure fire way of not back siphoning into the reservoir or gravity siphoning into the sump.
If the pipe is placed into a high flow area then it doubles as a great dosing spot as well (both my ato and carbon dosing go into the same standing pvc pipe)