Tank gauges

[Laurie 1799]

2019 Solitude 310 fifth. Tanks are definitely empty. Black tank reads 1/3 , kitchen 2/3 and bathroom 2/3. Tried master blaster last year no difference, tried the borax/dawn soap this year and still the same. Have been r/v ing for 15 years and have never had this issue. Tanks drain ok and fresh water gauge works properly. I use chemical in all three waste tanks all the time. Ideas?

[Ynot4me2]

Have you tried using the geo method or chemical, filling the tanks to, ketscsay 3/4 and going for a drive to slosh things around. Or even just fully filling them and let soak for a while?

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[Second Chance]

I've been RVing for a long time and I've never not had this issue (except in black tanks that have a rinser). It's very common with the types of sensors most manufacturers install. We just get used to it and know how long we can go on the gray tanks. Many folks who want accurate and reliable tank sensors go with these:

https://www.rvupgradestore.com/Garne...I-p/709-P3.htm

BTW - You can create a signature block with your RV and tow vehicle information (see mine below). That way you won't have to repeat that information whenever you post or ask a question - and others won't have to ask. You can create a signature by going to:

Forum Actions (on menu bar) -> Edit Profile -> Edit Signature (under My Settings on the left)

Rob

[FlyStar]

I have the same issue. For the grey tanks I put 16 oz of dawn and fill em up for a week. Then drain. Then ok. For the black I use this stuff

Unique Sensor Cleaner Liquid for RV and Boat Black Water Holding Tanks 32 oz. - 41J-1 https://www.amazon.com/dp/B0741NL8S5...ing=UTF8&psc=1

And follow the directions.

Works pretty good.


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[Laurie 1799]

Tried that a couple of different times, no luck.

[Laurie 1799]

Will try this thanks

[Second Chance]

Will try this thanks

Tried that a couple of different times, no luck.

@Laurie 1799 -

A few forum tips:

1) If you use "Reply With Quote" (to the right of "Reply") as I have here, folks will know to whom you are responding and that person will get a notification.

2) You can also tag folks using the "@" symbol and their user name (as I have done yours) - they'll also get a notification that way.

Rob

[Laurie 1799]

@Laurie 1799 -

A few forum tips:

1) If you use "Reply With Quote" (to the right of "Reply") as I have here, folks will know to whom you are responding and that person will get a notification.

2) You can also tag folks using the "@" symbol and their user name (as I have done yours) - they'll also get a notification that way.

Rob

Thanks Rob