Hi all....have a new forest river 25ds....second season...black water level indicator shows 3/4 or full at all times....always fill to 3/4 before i dump it and use rv tp...have wanded it thoroughly...help!....thx...bo

Most RV tank sensors are notorious for not working properly. This is a very common occurrence. You will find that most people here have the same issue. Most of us, like myself, learn to be able to gauge the tank levels based on usage and water consumption.Some of us here utilize creative ways to try and get them to read properly, such as calgon in the tank and driving with ice cubes to clean stuff off the sensors.Bottom line is that the sensors are unreliable.

?..thx...expected that...we will be on a month long trip next month and will have lots of kids coming and going....since i am a newbie and maybe not so good at judging levels,,,i will ask a perhaps dumb question...can i just wait till its full and the toilet wont flush anymore then dump...we will be on sewer in the rv park...thx...bo

Many will sort of burp when flushing if nearly full. Once that happens it is time to find a dump station.

boingram wrote:...can i just wait till its full and the toilet wont flush anymore then dump...we will be on sewer in the rv park...thx...boNot a good idea on that one. It could cause an internal leak. (Ask me how I know that....)I use a very simple method for mine:Black tank:Turn the water off, open the toilet lid, step on the flush pedal and look down the hole. There is a neck in the pipe that extends down a bit into the tank. Watch that closely and when you see the contents nearing the bottom of the neck, time to dump. Flashlight may help to see better.Don't let it get too full or you could have a mess on your hands.Grey tank:When I am ankle deep in shower water, time to dump.Fresh tank:I do a visual on this one. Mine is under the jackknife sofa. I lift the sofa base and look at the tank. A flashlight helps here.I actually removed the front kick panel of my sofa and installed magnetic catches. So I grab the panel and pull it down to reveal the tank so I can see the level better. If you are hooked up to city water, no problem on supply.Make sure you dump the black first followed by the grey so it washes your hose out.

beemerphile1 wrote:Many will sort of burp when flushing if nearly full. Once that happens it is time to find a dump station.X2

sticking indicator | Good Sam Community

13 Replies

beemerphile1
Explorer
Apr 22, 2014
Many will sort of burp when flushing if nearly full. Once that happens it is time to find a dump station.
boingram
Explorer
Apr 22, 2014
?..thx...expected that...we will be on a month long trip next month and will have lots of kids coming and going....since i am a newbie and maybe not so good at judging levels,,,i will ask a perhaps dumb question...can i just wait till its full and the toilet wont flush anymore then dump...we will be on sewer in the rv park...thx...bo
BobsYourUncle
Nomad
Apr 22, 2014
Most RV tank sensors are notorious for not working properly.
This is a very common occurrence. You will find that most people here have the same issue.

Most of us, like myself, learn to be able to gauge the tank levels based on usage and water consumption.

Some of us here utilize creative ways to try and get them to read properly, such as calgon in the tank and driving with ice cubes to clean stuff off the sensors.

Bottom line is that the sensors are unreliable.

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sticking indicator

13 Replies

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