DOS AWC questions

[spscrackhead]

I moved a few months ago and have some old equipment from my old tank to use on my new smaller system. I plan on relying on a kalk reactor for supplementation as opposed to ATI elements I used in the past. This means I have an extra dos... Was thinking I could set it up to do auto water changes or manual ones with a press of a button.
In the instructions it says the dos needs to be above the reservoirs to prevent a siphon. This is not the case with the trash can I plan to use for new salt water and my electrical cabinet which houses my dos. Instead of moving my dos somewhere ugly, can't I simply run the RO line higher than the top of the trash can to prevent any possibility for a siphon?

 

[SuncrestReef]

The DOS is a peristaltic pump, so the tubing is always pinched at all times. The only time you would have a problem is if the pump head breaks (I haven't heard of anyone complaining of this) or when you disconnect the tubing to replace the DOS heads.

 

[CuzzA]

Failure is always possible, since you have an Apex it would be wise to use float switches with a breakout box to have a failsafe built into your design.

 

[spscrackhead]

Failure is always possible, since you have an Apex it would be wise to use float switches with a breakout box to have a failsafe built into your design.

Yeah that makes sense and checks out to me. But it is in their instructions to cover their bases. I would like to cover mine as well...