Jumat, 06 Mei 2016

Disaster in the DWC raft System

OK...so a few days ago, I was working on a new set of  plant nursery rafts  in the green house when I noticed as I walked by the system that is connected to the new DWC rafts that the blower was working but no water was coming out of the grow bed fill tubes.Uh Oh!..Could there be a pump problem? So, out I went to the pump box, and after a close inspection, it appeared that the Danner Mag 9.5 pump was down. Of course it was 8 oclock Sunday night, so I decided to take the pump out and see if the impeller was stuck or gunked up.  I reached down and turned the Union Ball valve to the closed position to cut the DWC rafts off from the rest of the system. Of course, as I removed the pump, water came gushing out of the valve...how could this be?...after feeling around inside the valve, it appears that one of the Teflon rings in the valve became partially dislodged and was no longer making a seal...so how to stop the flow...hook the pump back up of course. So now what to do...

So, I decided to run down to Lowes to pick up a new temp pump, not realizing I already had one that would have gotten me by...but hey, I had to get a new valve..right?  So, off I went, 11 miles to Lowes, and after picking out a 2000 GPH pump, and PVC pipe along with a new valve and fittings I was back home in a flash, only to find out that the pump I had purchased was only submersible and not an in-line as there were no threads on the intake port, but the output was threaded, so I assumed both were threaded, and you know what "Assumed" means..right!.

So in order to take the valve out, I had to plug up the 2" PVC pipe coming out of the raft using a 2" rubber test plug, which did the trick. After placing the plug, I disconnected the pump for further troubleshooting.

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