Phosban Reactor Flushing

I bought a 150 Phosban Reactor and set it up yesterday. I flushed the GFO till the water that came out of the reactor was clear, which was like 6gal (I used a pump and aquarium water to flush as I was also performing a water change). However, when I put it inline with my tank setup, the red stuff came out and now my tank is cloudy with this GFO dust. I'm assuming it came out because it was allowed to settle, then when I put it online, it stirred it up again within the reactor. Couple questions:

Will the GFO dust released into the tank harm my fish/crabs/shrimp?

When flushing, do you let it tumble much more excessively than normal operation to get the dust out (not sure if this will grind it too much)?

What is the best method of flushing all this dust out using minimal amount of water?

 

I dont know much at all about GFO yet as I am not personally running it. I know with my carbon I use on my Cichlid tank I need to run that stuff through a bucket of water with a pump for an hour or so before the black dust is out of it. I use a 200GPH pump in a 5gal bucket with freshwater to get the dust out. I then replace the nasty water with clear water and repeat this process till there is no more dust.

By following that same logic you'd have to run your phosban for awhile, stop it, chagne the water, and run it again. Repeat this until the dust is out of the water?

I dunno though I havent used a 'reactor' yet.

 

Sounds like your pump is too big for the reactor. A Mini jet or no more than a Maxijet 400 are good choices and maye even need to be valved down slightly with the provided ball valve.
Vacuum the GFO out of your tank when you do a water change and you should be fine.

I flush my GFO in the kitchen or laundy sink using a low flow and a short piece of tubing. It does not have to be agressive, just enough to lift the light materials and dust, not much different than when it is in operation, a little surface tumbling.

 

It won't harm anything in your tank.It shouldn't take to long to clear back up.I've never flushed it myself I put it in my phosban 550 turn it on till it flushes then do my water change and never had a problem.