Black Water tank not reading correctly

[Bob Denman]

I thought that he was the guy who was gonna save the Planet...
Was the internet kind of like a hobby for him?

[paulwadley]

There is another word to learn called "Mooch docking" That is where you park in a friend's driveway or in front of their house while using their power and possible water. I have done it several times at our friend's house in Utah since they have an extra large r v driveway and 30 amp supply in the garage.

Welcome to the forum.

Paul

[Bob Denman]

But don't run a power cable over to your neighbor's garage... he might not like it.

[BattleBorn1]

Sensors are always going to be in harms way on every trip. TP is not friendly to start with. Check out YouTube on same subject. We dump old fashioned Borax into 5 gal of water, mix and dump into toilet. Add 1/3-1/2 tank of water into black tank. Do similar into grey tank with a bit of Dawn for grease buildup. Add 1/3-1/2 tank of water into grey tank.
Close up, batten down and hit the road letting the water in the tanks slosh around well. Dump both tanks, flush both again; dump again and finish off by adding 1/3-1/2 water to both.
Watch YouTube for best guidance. Works pretty darn good and is great for odors too instead of dumping deodorant into the black tank.
Look up SeaLevel II units that have exterior strips in %

[Pete'sMH]

Aren’t most coaches made with external sensors these days? Not that they work all that well either. Or at least mine don’t

[Bob Denman]

Mine has the external ones...
They needed an "adjustment" during Winter storage this year.

[MLP]

Originally Posted by Bob Denman

The only times I've ever put ice down a toilet... after processing it though my kidneys after a couple of scotch on the rocks!

Before I traded in my fifth wheel and before I sold my Class C, I used a liquid home septic tank treatment. All sensors worked fine. I poured half in the gray and half in the black tank. Filled then with water and let sit for five days. Emptied and all was well. Otherwise you can tell when they are getting full. Don't need sensors.

[Ocotillo Boy]

The black and grey on my Omni XG32 were wired backwards.

[Bob Denman]

Originally Posted by Ocotillo Boy

The black and grey on my Omni XG32 were wired backwards.

So they "emptied" as you filled them?
That could be useful; if it was true...

[pneumatics]

Originally Posted by Bob Denman

I keep thinking that adding Calgon to the tank might just make everything a bit "slipperier", and less likely to stick...

I don't know about Calgon but I always put a few drops of Dawn dish detergent in the black tanks before we pull out after the dump and flush. Since soap is an Emulsifier it breaks down what is left, having a couple of gallons in the tank means it sloshes around while driving.

Works for me. Don't put a lot, just a few drops. Very concentrated.

[Bob Denman]

We also use a fair amount of Dawn dish soap...
Whatever you do: don't try checking your tank levels like this!

https://www.thorforums.com/forums/at...1&d=1620391874

[michbout]

I use it on vegas 24.1 and it works.

[michbout]

Originally Posted by taylorbob1

My experience is that this contraption works best.
That is, the flush system on my rig doesn’t do a complete job.
But this device works everytime! (Knock on wood)

“Holding Tank Rinser”

https://www.campingworld.com/holding...alve-4678.html

I do agree it works fine on my Vegas 24.1

[Travelin' Texans]

Originally Posted by michbout

I do agree it works fine on my Vegas 24.1

This device works well provided the line drops straight down from the toilet to the tank, mine had 2 - 45 degree bends so it wasn't much help.
Also due to p traps or Hepvo traps at the sinks & shower drains it will not work for the gray tanks.

[lwmcguire]

I think it was the same guy

Originally Posted by Bob Denman

I thought that he was the guy who was gonna save the Planet...
Was the internet kind of like a hobby for him?

[lwmcguire]

Over many I have found traveling with tanks 1/4 or a bit more seems to clear the sensors

A bit of Dawn and tank treatment as well already in the tank

If you don't have plac a to dump near home base then not an option

[Harmonicaking]

Hi you might go to https://www.trbowlin.com/2021/01/28/...s-not-working/ and watch his video about maintaining your holding tanks he addresses the issue of sensors not reading or not reading correctly and offers a solution which seems to work well....you can also download the information which I did and I carry it with me.....one thing he talks about is getting rid of the smell from the toilet by using borax powder soap and dawn dish liquid in your black water tank then using some ZEP heavy duty citrus cleaner with some Boraxo in your toilet and let it works its way around the black tank for about five hundered miles or so, he swears it will get rid of the Poo Pyramid and clean the sensors....we have not been out enough yet to try it because our RV has been in the shop off and on for warranty plus wifey is healing from surgery, but soon and I will try it then....

[Chateau_Nomad]

I've been using Calgon $$$ and Tide detergent for the road trip "slosh"... which has worked perfectly. But I think I really like the Borax idea... going to try that.

Having convenient sewer/well access for dumping/flushing in my back yard, I use copious amounts of cheap well water through the San-T-Flush connection to flush my holding tanks.