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Old 07-23-2019, 08:09 PM   #1
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Black tank flush

Tried to use the black tank flush and what a disappointment, I could have left that on for 1hr and wouldn't have even 1/2filled the tank, Any one get little to no flushing on this ? We have a Brand new 2511s ,1st time using the flusher.
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Old 07-23-2019, 10:46 PM   #2
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Your supposed to have the drain open while using the sprayer. If the value is closed you could have a issue of
" it " spraying out the roof vent.
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Old 07-24-2019, 07:04 AM   #3
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Yes that I know ,but not getting much spray or water in the tank, at the flow rate from the sprayer it would take 1hr to even get close to full.
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Old 07-24-2019, 07:06 AM   #4
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X2 on the drain valve being open while using the flush.

A clear connection on the dump hose also helps while using the flush. Makes it easy to see if anything is still getting ďrinsedĒ out of the black tank.

The flow is not the same into the tank since it is going through nozzles and not just an open pipe. Would take a while to fill using that connection.
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Old 07-24-2019, 07:30 AM   #5
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Quote:
Originally Posted by Chris Pastuzyn View Post
Tried to use the black tank flush and what a disappointment, I could have left that on for 1hr and wouldn't have even 1/2filled the tank, Any one get little to no flushing on this ? We have a Brand new 2511s ,1st time using the flusher.
There is a high possibility/probability that your flush vacuum breaker/check valve is installed backwards. You need to find it and determine if it’s correct. Some are installed inside the bathroom cabinet.
See this thread for more info. Replacing Plastic Vacuum Breaker on Black Tank Flush Line
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Old 07-24-2019, 07:41 AM   #6
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I did follow the line and found the vacuum breaker, it appears to be in the correct direction , Probably jammed or restricted, it's the plastic one, .
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Old 07-24-2019, 07:49 AM   #7
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x3. its not a tank fill its a tank flush. not volume of water but high pressure water to clean sides of tank. valves need to be open.
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Old 07-24-2019, 08:22 AM   #8
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I understand what its intended to do, not a lot of flushing going on . Had the clear tube and clear water came out then went old school and way more stuff came out.
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Old 07-24-2019, 10:22 AM   #9
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Make sure you're not using your water pressure regulator while flushing, either. Slows down the process...alot.
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Old 07-24-2019, 07:10 PM   #10
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Make sure you're not using your water pressure regulator while flushing, either. Slows down the process...alot.
Shouldn't be using ANYTHING that is also connected to the fresh intake except the faucet that's supplying the water.

I use a separate hose to make absolutely sure there will be no cross contamination and yes, no regulator.

As for the tank flush mechanism making a lot of noise inside tank, not sure it has to. It's not a pressure washer but more of a "rinse" mechanism. I get plenty of water flowing out the discharge hose when flush is in use and it's nice and clear.

Perhaps if it was named "Tank Rinse" people wouldn't expect the sound to be like that of a fire hose spraying around inside the tank.
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Old 07-30-2019, 07:40 AM   #11
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Not going to be a full rush flow like when you pull valve open for grey/black ... mine is a steady flow and get cleaner as it flushes .... it is like a sprinkler head in there after we flush tank and close we add tank treatment packet and flush 3 or 4 times so it splashes around on the ride home and is prepped for next trip...
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Old 07-30-2019, 07:58 AM   #12
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It's possible you have a kinked hose between the connection and the tank. I've heard of that more than once.
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Old 07-30-2019, 07:55 PM   #13
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Is the flush that Rockwood installs a rotating sprayer like the Tornado tank flush, or is it just a fixed spray nozzle. Does anyone know what type of sprayer the factory uses?
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Old 08-17-2019, 07:19 PM   #14
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Finally figured out what was the issue with the black tank flusher/ rinse.The check valve spring retainer was backwards putting too much pressure on the ball.Flipped it around so the spring sits inside it and presto now it has flow.
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