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Old 08-21-2011, 03:34 PM   #1
chinacreek
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Default Black water tank removal

I have a 1988 coach. All the Sanitron sensors that I can see are corroded and loose, some are beginning to leak, all six need to be repaired. I looks like the only way to do this is to remove the tank completely. Is there anyone out there that knows the procedure for removing the tank. It appears that which ever side I take the tank out on some plumbing will need to be cut and removed. Which side is the best to take it out from? I would like to avoid disrupting the fresh water side of the compartment but am not sure that will be possible.

Any suggestions would be appreciated.

Thanks; Charlie
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Old 08-21-2011, 05:12 PM   #2
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are you talking about the sensors for detecting levels?

i would just plug any holes from sensors and put either a different sensor in or leave it alone. if you have the plastic tank i wouldnt take it out as the likelihood of damaging it has to be high.

tom
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Old 08-21-2011, 05:19 PM   #3
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Good advice, Tom.
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Old 08-21-2011, 08:22 PM   #4
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Yeah it would be easier to upgrade the sensors. Here is an example.

http://www.modmyrv.com/2009/01/12/rv...monitor-system

I have no experience with SeeLevel. I would recommend a search to find a sensor system that meets your needs.
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Old 08-21-2011, 09:41 PM   #5
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Default Black water tank removal

I'am talking about the sensors for the electronic oder control system. There are 6 total, 3 on the wall side of the waste tank and 3 on the forward side of the tank toward the fresh water tank. They are about an inch up from the bottom of the tank. The ones on the front side of the tank, toward the water tank, at least can be seen. The two on the outside can be reached the one in the center front not so easy. The major problem is with the 3 on rear side of the tank next to the wall. I can see and reach the 2 on the outside but they are so close to the wall I can't work on them. The one center of the rear side I can't even see. The ones that I can reach are all loose and the rubber seal is cracked and rotting,one of them is leaking. It seems that to avoid a huge mess in the not to distant future I have no choice but to plug these 6 holes. As much as I hate the idea of removing the tank and risking damage I see no other way.

Charlie;
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Old 08-21-2011, 10:43 PM   #6
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i would certainly not remove the tank for that. just plug the holes.

tom
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Old 08-22-2011, 12:44 AM   #7
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our 87 is the same way you must remove or move the tank to gain access to the back one the spacer between the fresh and black tank is movable but might not help much you will have to cut a couple of drain pipes and get some fernco's to reatach the pipes and try to move the tank over and reach in through the drain-drains....go to your local vet supply and get some calving gloves to reach in doesnt sound or look like fun but looks inevitable good luck Brian
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Old 08-22-2011, 02:17 AM   #8
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I agree with Tom, plug the holes and forget about taking it out.

Wally
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Old 08-22-2011, 02:42 AM   #9
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Charlie,

If you are concerned about odor control try this product.

http://www.alwaysfreshinc.com/

I have used it for years and it really works!
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Old 08-22-2011, 02:56 AM   #10
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Default Blackwater tank removal

Wally;

How can I plug the three holes on the back side against the rear wall of the compartment? I can't figure out how to get to them to work on them without moving the tank. It is the compartment that is the farthest to the rear and I thought if I could cut through the wall from the back, that might work, but I can't see a way to do that. This is coach #161 should be just like yours.

Should be " Just like eating BBQ ribs" and I'am OK with that.

Thanks for your response ,

Charlie
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Old 08-22-2011, 03:03 AM   #11
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Default Blackwater tank removal

Tuga;

Thanks for the link. Once I get the leak stopped I'll give that a try.

Charlie
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Old 08-22-2011, 03:16 AM   #12
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Default Blackwater tank removal

Wally;

From reading your Posts I can see you have done a fair amount of work on the plumbing of these coaches. If you had to, for some reason, remove the waste tank from your coach which side would you take it out through? I would like to slide it out without having to remove the hot water heater and the fresh water tank. Do you think that might be possible?

Thanks;

Charlie
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Old 08-22-2011, 03:43 AM   #13
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drivers side on ours,Brian
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Old 08-22-2011, 03:44 AM   #14
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Brian;

I'am not sure I understand you, but lets see. Are you saying if I can slide the backwater tank forward up against the fresh tank I might reach down the drain hole in the bathroom floor to work on center rear sensor? Of course it wouldn't hurt if my arm was as long as an NBA center's.

Let me know if I am close. (Brian this is in response to your first post)

Charlie
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Old 08-22-2011, 06:25 PM   #15
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I was saying cut the pipes necessary to move the tank away from the wall and reach through the outlets. Brian
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Old 08-23-2011, 03:23 AM   #16
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Sorry but if I had to go through all of that work I would consider up-grading the system. I do not see a need for a Black Water and Gray Water Tank. Ours has been replaced with simply one Plastic Tank (Black and Gray Combined) with the Plumbing Up-Graded to compensate. I can have the Gray Water Discharge while having the Black Water inside of the Holding Tank like all of the newer ones do. That is why I said that if I was to go through all of that work, I would up-grade it.
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Old 08-23-2011, 04:24 AM   #17
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our 87 also has black/grey combined Brian
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Old 08-23-2011, 04:51 AM   #18
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Personally, I like having a separate black tank, but I use the word "separate" loosely. It is one large tank divided into two compartments. I know the theory behind one tank is it just gives you the entire tank for all waste water, and, therefore, the ability to dispose of more gray water. That being said, I like the option of being able to dispose of my gray water without needing a dump station if I am in the wilderness. With one big tank I lose that option.
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Old 08-23-2011, 12:56 PM   #19
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If your in the wilderness what option do you loose. It was used as fertelizer for centeries in this country untill the chemical companies convinced politicians to ban it and sell chemicals. Its still used in most countries in Asia, lots of Europe and other areas of the world. I would never dump it in a populated area but in the wilderness or out in the boondocks thats what the cheater dump valve is for. I've only done it twice but it was sure nice to have when I needed it.

Thats my 2 cents worth and I'm not letting go.

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Old 08-23-2011, 01:58 PM   #20
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Default Blackwater tank removal

Prairieschooner;

It seems I have mis-named the tank. I have always called it blackwater if it contained solids. I also have a black/gray tank which can be used both ways depending which valves are open or closed.

Bill, who has an '87', has been messaging me about his experiences with a shop removing his tank out the curb side when he had this problem out on the road. I'am feeling fortunate to be at home dealing with this.

All this response has been very helpful, THANKS EVERYONE!

I'am diving in today, and will update when I know more.

Charlie
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