Help with ZEOvit reactor please

[andestang]

I have a point on my supply line that is higher than my Zoevit material that has an airline tube plumbed over to the top return line/pipe. When the pump is on the water from the airline tube just goes into the return and when the pump is off the airline tube will cause the break in the siphen. When you go to run full time just plug off the airline fitting on the supply line or leave in place for any power failures.

Originally Posted by surgeonfish

How do you keep the water level in your ZEOvit reactors above the ZEOvit?

I have been using the ZEOvit system now for 2 weeks. I bought the GroTech ZF110 filter/reactor. I am turning the feed pump on and off at 3 hour intervals. I somehow thought that when the pump was off the filter remained full of water and the ZEOvit would stay submerged. Silly me. I checked the filter tonight and found that when the feed pump is off, the reactor slowly drains down to the water level in my sump leaving >50% of the ZEOvit dry. How do you keep the water level above the ZEOvit. I don't want to raise the water level in the sump if possible.
Thanks

[surgeonfish]

Thanks for all the advice.
I think the easist is to just keep the pump running 24/7 and reduce the flow as Tom R suggested. The problem with making any mods with the GroTech filter is I need metric plumbing supplies.
Here is a link to a mod similar to what andestagg is describing: http://zeovit.com/forums/showthread.php?t=3500 (sorry it is in Spanish but has nice pictures).

[Jason McK]

You can also just run the pump 24/7 but cut the flow rate significantly.
Sorry I would suggest you post on Zeovit.com to get possible flow rates

J

[andresont]

How about just attaching a rubber glove with fingers cut off on the output of the pump?
This will allow a water flow only one way in to the reactor and will (theoretically) prevent from draining back when pump is off.
At least it worth a try imo.