Flush King Cracked My Black Tank

[NASCARon]

I had to recently replace my black tank. Actually it is my fault, I was back flushing my black tank with the Flush King and I got distracted. Walked away to tend to something else and in a few minutes... BOOM!!! The Flush King had filled the tank and caused enough pressure to burst the tank. I would have thought that the water would have just came out of the vent, but it didn't.

That was an expensive lesson. First thing I did was replaced the tank. Then I installed a new sensor system for all of my tanks that alarms me when they are full.

God Bless
Ron, Tina & Sophie (The Mutt)
A Couple Saved by Grace
Full-timers starting June 2007

2001 Keystone Montana 3670RL
2004 Chevrolet Silverado 3500 LT, D/A, DRW, CC
Jordan 2020 Ultima, Reese 16K Kwik-Slide
Frank's Voltage Booster

[Hemlockusa]

HI NASCARon - I am so sorry to hear about your trouble. When we purchased our's and doing the WALK THROUGH... The Tec EMPHASIZED making sure that the only time you used the flush king you also left the black tank drain open. That is the way I have done it every time and no problem, I am happy I listened to him.
SAFE TRAVELS John H

2005 Dodge 3500 4x2 Dually Cummins Diesel, Line X /2005 Montana/""MOC TRAVEL ASSISTANCE VOLUNTEER"" ""TOPEKA, KANSAS AREA"" 3650RK

[Ozz]

NASCARon,
Welcome to the Forum!
I almost did the same thing when I was in S. Padre, last winter, walked away, got to talking with a neighbor.
If Sue hadn't reminded me, I would have done the same. I had installed a Turbo flush. Nice, do you use the clear 45 degree elbow? That's 'The Cat's meow!' let's you know when all the Brownies are out of the tank.
What kind of an alarm? Mmmmm... might have to get one of those critters.
Ozz

'07 3400RL 2nd RTU
2 Golf Cart batteries 1500 watt inverter
Honda 2000 Generator, 2nd one and twinning kit coming
Maytag's with 220 Dryer
Stationary domed Sat. dish
LCD 12 Volt Amp gauge
LCD Tank Monitor
3 added 120 volt outlets
On Board Air; 12 Volt Viair 450C compressor
2006 Ford PSD 4x4 Off Road Lariat
Hadley Air Horns
Truck inverter with 110 volts for laptop
Color Backup Camera
Awning lock

[ronnilu]

O.K. I get it that you shouldn't leave the water hose on and running with the dump valve closed so the water doesn't fill up and spill out the toilet & flood all over inside, but how the heck did the water and pressure build up in the first place. I would have thought either the water level would have come up and out the toilet, or would have gone up and out through the vent pipe. A camping neighbor recently left his hose on accidentally & the mess came up both places. He had a chocolate fountain out the roof vent and a nasty mess inside. But to actually build up pressure to the point it broke the black tank structure doesn't make sense to me. Yes, I do flush with the valve closed, but I time it and also listen for when the water level begins to cover the spray outlet inside the tank, then open the valve & drain. Any explanations out there? Mike

Mike & Ronni Sorrell
Bakersfield, Calif.
'06 3295RK
'03 GMC Duramx/Allison,4 door, long bed, supersprings,starboard running boards LineX

[CountryGuy]

Mike,

A thought before the coffee kicks in

The tank was already flawed, and the weak point??

Carol

[Ozz]

NASCARon,
I got to thinking, did you install a Vena tank monitor? I think mine has an alarm.
I don't have the last tank sensor mounted yet, or have it calibrated, Do you have Two Grey tanks?
The Vena only monitors one Grey, so I installed a DPDT rocker switch, so I can toggle between Two tanks and use the one readout on the meter. The Vena part # is 3244, hope that helps.
Ozz


'07 3400RL 2nd RTU
2 Golf Cart batteries 1500 watt inverter
Honda 2000 Generator, 2nd one and twinning kit coming
Maytag's with 220 Dryer
Stationary domed Sat. dish
LCD 12 Volt Amp gauge
LCD Tank Monitor
3 added 120 volt outlets
On Board Air; 12 Volt Viair 450C compressor
2006 Ford PSD 4x4 Off Road Lariat
Hadley Air Horns
Truck inverter with 110 volts for laptop
Color Backup Camera
Awning lock

[sreigle]

Is the Flush King an aftermarket flusher or are we talking the black tank flush that comes on the Montana?

I also flush with valve closed but I count off no more than five minutes, then pull the handle. When the flow dies down I do it over again and continue until it flows clear. I like to get enough water in there to flush out those things sitting on the bottom that might not otherwise move. If I have other things to do I'll leave the valve open and let it run for 20 minutes or until I see the flow is clear. Then next time I'll do the closed valve routine.

Once, I needed to completely fill the tank. Vicki watched down the toilet and it was right at ten minutes to fill the tank. It panicked her when the water started climbing up the down pipe rather quickly. I shut off the water flow when I heard her frantic beating on the wall. The time probably depends on water pressure.

See another Montana or Mountaineer on the road? Flash lights twice, it might be one of us!
Steve Reigle (pronounced Regal)
Fulltiming since 3/21/03
'03 3295RK
'05 Ford F250 SD Lariat CC SB 6.0L PSD/TS FX4 4x4

Our RV Travels (now Firefox-compatible)

[richfaa]

It does say, in the docking station, of the late model Montana's not to operatre the flush system with the dump valve closed. My thought was that was a safety feature for those who may forget about it with the resulting mess.. I have always , as part of the flusing procedure, closed the dump valve, let water flow into the tank, then pull the valve..I am of course right there.

Rich& Helen N.Ridgeville,Ohio.

F-350SD, Lariat, V-10,4:30 Diff, tow command Long bed, Crew Cab Dually, 06 3400RL
Mor-Ryde Pin Box

[sreigle]

Our 2003 has a sticker on the sidewall near the flush connector that says the same thing. I always figured it had to do with potential overflow. I've never had a problem with it leadking during flushing. So far.

See another Montana or Mountaineer on the road? Flash lights twice, it might be one of us!
Steve Reigle (pronounced Regal)
Fulltiming since 3/21/03
'03 3295RK
'05 Ford F250 SD Lariat CC SB 6.0L PSD/TS FX4 4x4

Our RV Travels (now Firefox-compatible)

[Ozz]

Hey Ron,
Are you reading these posts?
Ozz

'07 3400RL 2nd RTU
2 Golf Cart batteries 1500 watt inverter
Honda 2000 Generator, 2nd one and twinning kit coming
Maytag's with 220 Dryer
Stationary domed Sat. dish
LCD 12 Volt Amp gauge
LCD Tank Monitor
3 added 120 volt outlets
On Board Air; 12 Volt Viair 450C compressor
2006 Ford PSD 4x4 Off Road Lariat
Hadley Air Horns
Truck inverter with 110 volts for laptop
Color Backup Camera
Awning lock

[dannyl]

I had the NO-FUSS flusher installed on my RV after having several stop-ups.
I flush with the valve open and watch the clear elbow until the water flows clear.
I have run this after getting home and draining the clear into the yard making sure all was clear.

What do you use to break up the solids in the tank? (or do you use anything)?





Mountaineer 348RLS
Dodge 3500 Cummings dually
Reese 16K Hitch
An Okie caught in Texas

[sreigle]

If you have a tissue buildup your RV dealer probably has some Tissue Digester. I used that successfully last winter when we (I) managed to build up the dreaded pyramid of paper that blocked off the downpipe from the toilet itself (a whole story in itself). Tissue Digester took care of it. Follow the directions precisely.

See another Montana or Mountaineer on the road? Flash lights twice, it might be one of us!
Steve Reigle (pronounced Regal)
Fulltiming since 3/21/03
'03 3295RK
'05 Ford F250 SD Lariat CC SB 6.0L PSD/TS FX4 4x4

Our RV Travels (now Firefox-compatible)

[Gpa_Dick]

I use the Flush King to add water to the Black Tank when I get there. Usually a couple of minutes worth of water. This helps keep the "stuff" from building up.

I haven't had a chance to use it on the Monty yet. I may just run the No-Fuss Flusher a couple of minutes instead.

-Dick


2006.5 Montana 3400RL
(Ma Bella 2 'cuz Mary is Ma Bella 1)

2002 Silverado 2500 LT CC SB 4x4 DMax/Allyson Prodigy Controller
Reese Signature Hitch