Float Valve Back Up?

[FirstContact]

I'm just having my rodi installed inside the house. Can anyone remind me what the back up would be for a float valve?

[rgulrich]

After having a few float valve "malfunctions", I'm using both an Auto Top Off solenoid on the feed for the RO/DI and a secondary drain (last ditch, set the highest in the Brute container) as an extra measure.
http://autotopoff.com/solenoid/
Hope this helps.
Cheers,
Ray

[uhuru]

I use the GAP liquid level controller. It has a solenoid, float valve and float switch all integrated into it and a nice hanging bracket. The solenoid is also plugged into a timer.

[FirstContact]

Thanks guys!