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When the blackwater is full

DarkSkySeeker
Explorer
Explorer
When the blackwater is full - really full - would I see liquid right at the opening if I stepped on the foot lever on the toilet?
There is something special about camping in an RV.
.
22 REPLIES 22

Michelle_S
Explorer III
Explorer III
I also do the Sunday Dump, but if it gets full before Sunday it lets us know by it's burp.
2018 Chevy 3500HD High Country Crew Cab DRW, D/A, 2016 Redwood 39MB, Dual AC, Fireplace, Sleep #Bed, Auto Sat Dish, Stack Washer/Dryer, Auto Level Sys, Disk Brakes, Onan Gen, 17.5" "H" tires, MORryde Pin & IS, Comfort Ride, Dual Awnings, Full Body Paint

Cummins12V98
Explorer III
Explorer III
stickdog wrote:
If your a fulltimer do as we do and start with "BLACK TANK TUESDAYS".


I personally do a "Sunday Service" on both tanks.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

Veebyes
Explorer II
Explorer II
Those gauge lights are...well...full of it. We dump. One light is on. Make one or two 'deposits' & four lights are on again. This after doing a procedure that puts a few gallons of water into the tank to slosh around after dumping.

We stopped getting frustrated by those stupid lights long ago. We simply do a minimum of three days between dumps & don't go more than seven.
Boat: 32' 1996 Albin 32+2, single Cummins 315hp
40+ night per year overnighter

2007 Alpenlite 34RLR
2006 Chevy 3500 LT, CC,LB 6.6L Diesel

Ham Radio: VP9KL, IRLP node 7995

stickdog
Explorer
Explorer
If your a fulltimer do as we do and start with "BLACK TANK TUESDAYS".
9-11 WE WILL NEVER FORGET!
FULLTIME SINCE 2010
17 DRV MS 36rssb3
17 F350 King Ranch CC DRW 4x4 6.7 4:10 B&W hitch
John
โ€œA good traveler has no fixed plans, and is not intent on arriving.โ€ Lao Tzu

Bobbo
Explorer II
Explorer II
DarkSkySeeker wrote:
MrWizard wrote:

If your gauges aren't working then use a flashlight and check it often


They work, but I don't get much "resolution". 4 LED lights that indicate full are not that helpful when trying to determine if the tank is full - full.

Easy Peasy, when the third light lights up, dump the tanks. If the fourth light lights up, you are past due to dump.
Bobbo and Lin
2017 F-150 XLT 4x4 SuperCab w/Max Tow Package 3.5l EcoBoost V6
2017 Airstream Flying Cloud 23FB

Mike_LeClair
Explorer
Explorer
Let the flush & burp tell sign be your guide!

Cheers!

Mike
Something Old, Something New
2012 F350 SRW, 6.7l Powerstroke, 3.55's front and rear.
2008 Fleetwood Regal 325RKTS
Mike, Carol and our 4 legged "furry child" Kenzie Shweenie Tod

Lwiddis
Explorer II
Explorer II
You need to take a dump less often or dump your RV more often.
Winnebago 2101DS TT & 2022 Chevy Silverado 1500 LTZ Z71, WindyNation 300 watt solar-Lossigy 200 AH Lithium battery. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist. 14 yr. Army -11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad

DarkSkySeeker
Explorer
Explorer
2edgesword wrote:
We're old, irregular and never stay at a park for more than a week so the 40 gallon black tank never gets full.


At least you're honest. We've stayed a week while dry camping and the first thing (fresh, gray, black) to limit out is the fresh water.
There is something special about camping in an RV.
.

2edgesword
Explorer
Explorer
We're old, irregular and never stay at a park for more than a week so the 40 gallon black tank never gets full.

toedtoes
Explorer III
Explorer III
bukhrn wrote:
DarkSkySeeker wrote:
MrWizard wrote:

If your gauges aren't working then use a flashlight and check it often


They work, but I don't get much "resolution". 4 LED lights that indicate full are not that helpful when trying to determine if the tank is full - full.
Most of them are notoriously incorrect anyways.


For me, the gauge is a guideline. Once it says it's 3/4 full, it's time to start considering emptying the tank. I don't need it to be exact - I don't push the capacity to the extent that it will mean overflowing.
1975 American Clipper RV with Dodge 360 (photo in profile)
1998 American Clipper Fold n Roll Folding Trailer
Both born in Morgan Hill, CA to Irv Perch (Daddy of the Aristocrat trailers)

bukhrn
Explorer III
Explorer III
DarkSkySeeker wrote:
MrWizard wrote:

If your gauges aren't working then use a flashlight and check it often


They work, but I don't get much "resolution". 4 LED lights that indicate full are not that helpful when trying to determine if the tank is full - full.
Most of them are notoriously incorrect anyways.
2007 Forester 2941DS
2014 Ford Focus
Zamboni, Long Haired Mini Dachshund

filrupmark
Explorer
Explorer
When our black tank is full the toilet burps when you step on the pedal.
2004 Ford F250 Super Duty 6.0 Diesel, Bilstein 4600 Shocks, 16K B&W Patriot, Michelin M&S
2014 Augusta Flex AF34RS Trailair Tri Glide pinbox,
JT Strong Arms , Bridgestone R250'S, KYB Monotube Gas shocks
Finally a smooth ride !!!

DarkSkySeeker
Explorer
Explorer
pianotuna wrote:
yes but if you can see it it is probably over full.


I think you are on to my real question. I've been referring to "full-full" and I now know what I will be able to see when it is "scarey-full".
There is something special about camping in an RV.
.

BB_TX
Nomad
Nomad
It will likely start โ€œburpingโ€ before it gets that full.