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Old 07-25-2015, 06:57 PM   #11
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If the "coupon" from the hole saw is in that tank, and it's the same size or larger than the outlet hole, it may well be lodged at the outlet and reducing flow. If that's the case, just cutting the outlet pipe won't help as the stuck piece will be too large to get out. You'd have to enlarge the tank outlet hole and then use a reducer to connect to the existing outlet pipe.
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Old 07-25-2015, 07:00 PM   #12
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I would suspect you have a cable pull and it is slipping on the valve.
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Old 07-26-2015, 12:43 PM   #13
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I had the same type of issue with the grey tank on my 2011 Georgetown 327DS. The grey valve wouldn't completely close. I ended up disassembling the (easily reachable) valve and discovered a piece of flooring caught in it. Fortunately I was able to remove it using my extra long tip needle nose pliers. Unfortunately, the piece of flooring was shaped like a crescent moon.

There's only a single way to get a piece of flooring shaped like this. The original hole cut in the floor and tank was in the wrong place. A second hole was cut, offset from the first by around 3/4". This means that whatever pipe was inserted in the tank had a hole with a large gap on one side. I just hope that FR got it well sealed because there's no way to inspect it. I suspect that this was from the shower drain.

Phil
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Old 07-26-2015, 01:11 PM   #14
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Originally Posted by OldCoot View Post
I would suspect you have a cable pull and it is slipping on the valve.
Listen to Coot! X2. The only other way is to run a snake up the pipe end, paying attention (calculate distance) to where you meet the obstruction. If you measure it to be at the valve, WELLA, the old Coot was right, AGAIN.

Or, just get your wallet out, your choice.
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Old 07-26-2015, 02:45 PM   #15
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I have had the grey tank draining problem about 3 times now and I have got it open by flushing my black tank then filling it partially full of water and, with the grey tank empty and the valve open draining the black tank. Both of my tanks, Georgetown 378, empty into the same outlet. Bt doing this it seems to flush the obstruction out of the way. Not a permanent fix but seems to be a work around.
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Old 07-26-2015, 06:09 PM   #16
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Originally Posted by pmsherman View Post
I had the same type of issue with the grey tank on my 2011 Georgetown 327DS. The grey valve wouldn't completely close. I ended up disassembling the (easily reachable) valve and discovered a piece of flooring caught in it. Fortunately I was able to remove it using my extra long tip needle nose pliers. Unfortunately, the piece of flooring was shaped like a crescent moon.

There's only a single way to get a piece of flooring shaped like this. The original hole cut in the floor and tank was in the wrong place. A second hole was cut, offset from the first by around 3/4". This means that whatever pipe was inserted in the tank had a hole with a large gap on one side. I just hope that FR got it well sealed because there's no way to inspect it. I suspect that this was from the shower drain.

Phil
I totally agree pmsherman. hope they did repair the oversized hole.
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Old 07-27-2015, 11:47 AM   #17
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Just to update everyone. I ended up unscrewing the valve housing of the gray tank and taking it out, then used a plumbers snake to unblock. Success! I found a half moon piece of plastic that was blocking the pipe further up.

Process to take off and put back the valve house was pretty easy, just make sure you place the two washers on correctly and don't over tighten.

Thank you everyone for the advise in trouble shooting the issue. Hopefully that's all that's in that tank, but at least I know how to try and fix if I come across a similar issue on another tank.
Raj.
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Old 07-27-2015, 12:27 PM   #18
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Glad you got it fixed. Thanks for letting us know.
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