RV

Have RV questions? Ask an RV mechanic online.

Ask an Expert,
Get an Answer ASAP!

My Dometic 8750 toilet will flush/drain easily into a trash…

Customer Question
My Dometic 8750 toilet...

My Dometic 8750 toilet will flush/drain easily into a trash can.

Mechanic's Assistant: What's the make/model/year of your RV?

2011 Tiffan Allegro Bus. But when I connect

Mechanic's Assistant: What is the model of your '11 RV?

It back to my plumbing......it stalls out

Mechanic's Assistant: Is the check engine light on? Does the car stall at idle or when driving?

Ummm. No

Mechanic's Assistant: Are you fixing your RV yourself? What have you tried so far?

Well, when disengage my toilet from the “exit pipe” and flush the water out the back into a trash can, it works great.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

But when I connect it to the “exit pipe” to flush to my holding tank, it won’t go down

Submitted: 6 months ago.Category: RV
Show More
Show Less
Ask Your Own RV Question
Answered in 18 hours by:
1/10/2018
RV Mechanic: peterpete190, Auto Technician replied 6 months ago
peterpete190
peterpete190, Auto Technician
Category: RV
Satisfied Customers: 33,017
Experience: Over 17 years diagnosing and repairing various model vehicles.
Verified

My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.

From what you have described it sounds like a restriction in the holding tank itself.This can be stuck TP or debris stuck in the pipe or tank.You may have to use a snake tool to work free any debris jammed in the drain pipe to the tank to correct this here or have a repair facility do this for you.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service, your 5-star rating is appreciated ( should be a link to click on here or above).You can rate at any time and we can continue to work on your question as this will not close out your question.I work on delivering the best answer and help here but in some cases, it can be difficult to do without seeing the vehicle.

Thanks Pete

Ask Your Own RV Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a rv mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask peterpete190 Your Own Question
peterpete190
peterpete190
peterpete190, Auto Technician
Category: RV
Satisfied Customers: 33,017
33,017 Satisfied Customers
Experience: Over 17 years diagnosing and repairing various model vehicles.

peterpete190 is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV.

DutchUSA

Highly recommend this RV expert. Prompt, good and detailed answers were given. Very willing to help with genuine concern. I will ask for him next time.

JackUSA

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

< Previous | Next >

Meet the Experts:

gene

gene

RV Mechanic

1,100 satisfied customers

28 yrs exp in the industry

Nick

Nick

RVIA Certification

664 satisfied customers

5 years RV repair and reconstruction, Fleetwood RV Training course completion.

Steve F.

Steve F.

RVIA Certification

443 satisfied customers

Journeyman and Master RV technician, Mechanical & Aerospace Engineer. RVIA Technical Consultant

Randall

Randall

RVIA Certification

13,661 satisfied customers

RVDA/RVIA Master Certified Technician with many years experience.

Robert

Robert

RV Mechanic

13,563 satisfied customers

18 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.

Wayne

Wayne

RV Mechanic

979 satisfied customers

Work on several type of Rv engine, Trans, brakes

Chris (aka-Moose)

Chris (aka-Moose)

RV Mechanic

502 satisfied customers

16 years of experience

< Previous | Next >

Related RV Questions
How often should the black water and water tanks be flushed
How often should the black water and gray water tanks be flushed and cleaned? I just bought a preowned Spree with basically no maintenance info. … read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
My toilet does not seem to be going down, even after
My toilet does not seem to be going down, even after emptying the black tank, although it wasn't full. Any ideas?… read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
13,661 satisfied customers
Leaking water from plumbing. Toilet backed up. Can't find
Leaking water from plumbing. Toilet backed up. Can't find master shut off for the water … read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
Why is my black water backing up? 2013 thor serrano 33w,
I've snaked out from discharge and down the toilet and when I open the valve it's not draining … read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
Our toilet is burping when flushed. we sent a camera down
we sent a camera down the toilet and there is no blockage … read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
I have a isata dynamax 1997 Chevy p 350 1998 conversion over
i have a isata dynamax 1997 Chevy p 350 1998 conversion over the winter I may have broken a fresh water line but unable to locate it is there a diagram of water pipes for this model?… read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
13,661 satisfied customers
The center toilet on my 45 allegro bus flushes slowly. When
The center toilet on my 45 allegro bus flushes slowly. When I push down on the handle it takes a while or repeated tries to get it to flush. I'm afraid one time it may not. Seems to be getting progres… read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
What happens if you over fill the black water tank and pressurize
What happens if you over fill the black water tank and pressurize it with the rinse feature?I did this by accident ,and now I have a leak underneath and the toilet bubles when flushed?… read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
My black water tank and drain line from the toilet is clear.
My black water tank and drain line from the toilet is clear. My toilet will not drain. The flush flap is open and the black water in the toilet basin does not drain. Any hints as to what may wrong?… read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
I also have a 42 ft Tiffan Allegro Bus with a Dominek Toilet,
I also have a 42 ft Tiffan Allegro Bus with a Dominek Toilet, model number not visible. It has power and flushes but doesn't refill. I suspect the Control Module but can't locate it. Domitek told me i… read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
Motor home..black tank recurring--have replaced the toilet seal
have a used 1997 Raven Class A motorhome. Odor from black tank recurring--have replaced the toilet seal twice (after having replaced 'soaked' floor around toilet, as well as new parts for toilet 'drai… read more
Michael Reush
Michael Reush
Master Technician
High School or GED
3,116 satisfied customers
The front bathroom keeps stopping up with out even using it
Purchased a new American Revolution with 2 bathrooms. The front bathroom keeps stopping up with out even using it. Any help???… read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
13,661 satisfied customers
clogged toilet in my 5th wheel. Black tank is empty - and im
Hi. I have a clogged toilet in my 5th wheel. Black tank is empty - and I'm quite sure of that. Water is backed up to the toilet. I've tried snaking from the toilet, and I've tried the wand with the ho… read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
2006 fleetwood: trailer..it difficult to add holding tanks as it came
My father in law and I just bought a 2006 fleetwood FEMA trailer. I had a few questions about it. Is it difficult to add holding tanks as it came with none. The slide out is manual can that be changed… read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
RV..there a valve to release the sewer from the trailer holding tank
We have a 1971 Timberline RV with a sewer system. Is there a valve to release the sewer from the trailer holding tank and what does it look like? How do you hook up the system? We have a hose from the… read more
gene
gene
RV Mechanic
Vocational, Technical or Trade Scho
1,100 satisfied customers
flow out case..tank disconnected the hose and nothing..gauge reads
toliet will flush but the contents bubble back up while the flush is in progress. it seems as if (to a rookie like me) that the tank is too full to allow flow out case in point if i flush a toliet tha… read more
RV Doctor
RV Doctor
Shop Foreman
Vocational, Technical or Trade Scho
324 satisfied customers
1998 southwind----I have a leak in the plumbing..I flush the toliet.or
I have a 1998 Southwind----I have a leak in the plumbing when I flush the toliet.or run water in the sinks. The water lines do not leak. It is in the drain system. I would like to know if there is a w… read more
RV Doctor
RV Doctor
Shop Foreman
Vocational, Technical or Trade Scho
324 satisfied customers
1999 prowler: backing..water thru toilet with water hose..black water
1999 prowler has a thatford aqua-magic iv toilet. won't hold water in bowl and keeps backing up even after forcing water thru toilet with water hose. it will slowly drain out but something is keeping … read more
Robert
Robert
RV Mechanic
Vocational, Technical or Trade Scho
13,563 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x