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Old 09-05-2017, 10:43 AM   #1
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2018 Pursuit 31SB Toilet Problems

Hi all -

New to the forums (and motorhome ownership, as of July, 2017).

We dove right in on our first motorhome and purchased a 2018 Pursuit 31SB. And while we have enjoyed our new "lifestyle", we have unfortunately had to deal with issues with the toilet/black water tank.

We continually get blocked up, no matter how "delicately" we use the toilet. We have used Camco for RV and the Scott single ply for paper. I have been able to "free" the clogs using a flexible coat hanger or a flexible wand, and a plunger. On our previous trip, I back-filled the tank 12 times, having had two "clear" dumps in a row. Through this I have come to believe that it is just a flawed design. I know that there is at least one 90 bend and I am guessing that it may be two, rather than a straight shot to the tank.

Curious to know if anyone else has had similar issues with a newer Coachmen?
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Old 09-05-2017, 09:53 PM   #2
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When doing #2, we fill the bowl with clear water twice and flush it when we are done. The best thing to avoid problems with the black tank is lots of water.
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Old 09-06-2017, 03:07 PM   #3
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My wife's and I have a 2017 Pursuit 30FW. We also experienced the backing up problem with toilet paper, which happened to us twice on week long trips. Both times I had to plunge the toilet to free the obstruction. Ours also has the sharp bend, which is basically where the obstruction was happening.

We have always used RV tissue, and even that was not dissolving quickly enough. Furthermore, we are religious about going to the bath house for #2. We were told by the dealer who sold the RV to us that the tissue would need to be wetter than it was to dissolve, which is a problem as the tank is quite small, especially compared to our previous Montana fifth wheel where we NEVER had such problems. My wife has since bought a small trash receptacle with a lid, which is where any tissue now goes. That appears to be working as there have been no further problems.
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Old 09-07-2017, 12:32 PM   #4
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Thanks for the responses!

Frustrating that there would be such a design flaw. I am attempting to get the plumbing schematics just to confirm. It would seem that a few simple mods to the floor plan of the bathroom would allow a "straight shot". Lesson Learned to be sure!
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Old 09-07-2017, 01:17 PM   #5
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Not sure on yours, but our toilet is on the curb side of the coach, while the tank is on the other side, so the angle is understandable from that viewpoint. Ours is also complicated by the full wall slide on the road side, so no toilet could be on that side to afford a direct drop to the tank. That is how our Montana was situated, so, like I indicated earlier, we never had any problems with clogs. That said, the tank on the fifth wheel was always slow to drain, while this tank empties in a blink of an eye. Some trade off, but that is the nature of RVs I suppose.
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Old 09-07-2017, 02:45 PM   #6
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Yes - We seriously considered the 30FW (really liked the outdoor kitchen), but decided to go with the 31SB as it had the King Bed (and ... well ... our Brussels and Boxer end up in there ...) - same positioning with the bathroom though ...

The other issue is that all of that plumbing is boxed up ... even underneath ...
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Old 09-07-2017, 04:24 PM   #7
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Quote:
Originally Posted by CousinEddie View Post
Hi all -

New to the forums (and motorhome ownership, as of July, 2017).

We dove right in on our first motorhome and purchased a 2018 Pursuit 31SB. And while we have enjoyed our new "lifestyle", we have unfortunately had to deal with issues with the toilet/black water tank.

We continually get blocked up, no matter how "delicately" we use the toilet. We have used Camco for RV and the Scott single ply for paper. I have been able to "free" the clogs using a flexible coat hanger or a flexible wand, and a plunger. On our previous trip, I back-filled the tank 12 times, having had two "clear" dumps in a row. Through this I have come to believe that it is just a flawed design. I know that there is at least one 90 bend and I am guessing that it may be two, rather than a straight shot to the tank.

Curious to know if anyone else has had similar issues with a newer Coachmen?
CousineEddie

We have a new (2018) 30FW. Same problem. I believe there is a design problem. There are two 90 deg elbows along with a long run of abs pipe. The "fall" or drop over its length is insufficient to carry the effluance from the toilet to the holding tank. Other than pure liquid you will experience frustration with the system. The small diameter of the drain pipe doesnt help either!
Not sure if there is a simple solution. We are looking at a mascerator toilet to solve the problem. Why they did not put the holding tank directly under the toilet (prefered practice) is beyond me. I would expect all owners are experiencing this problem. I believe the 31SB has the same layout.

I have not contacted the plant and i cannot rely on the dealer to help other than sympathize with our problem...... Grrrrrrr.

Bottom line? -- Crappy design--

Bob
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Old 10-14-2017, 01:50 PM   #8
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+1 on toilet situation with Pursuit 30fw

We have the same issue, and the solution is lots of water in bowl, make sure the paper is fully soaked before flush, and keep the plunger handy because neither of the previous two work all the time. i was told by my dealer that there was a black tank cleanout wand arrangement, which of course there was not, so I decided to install a campco tornado in the black tank shortly after we purchased. When I went to put it in, i realized the tank depth on the curb side looked to be no more than a couple inches, and that is the side the toilet drops into. You can see both tanks on the curb side inside the main storage area under the outdoor tv. The bulk of the tank capacity is on the opposite side. To take matters worse, on my unit, the toilet does not drop down directly into the tank, but via a "slide" going forward, limiting the flow even more. The good news, is the plunger is very effective at moving the blockage into the main part of the tank, and the tornado mounted on the toilet side of the tank is a direct hit for the point where the toilet drop meets the tank, it clears a clog easily. Bottom line a very poorly designed toilet/tank combination.
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Old 12-13-2018, 08:51 PM   #9
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Coachman Class A toilet clogging

Have a friend that experienced the toilet clogging almost every flush.
With much research and complaining he identified the problem as being the toilet was located right over a chassi cross beam . There apparently was not enough room to install a 90 degree pipe ( to clear the beam ) between the toilet and the tank without elevating the toilet so The tank was fabricated with a shallow extension that goes horizontal and fits flat between the beam and underside of the toilet. The result was that a flush dumped onto the flat bottomed extension of the tank and sat there . He got the problem resolved by having a separate flush line installed into the side of the flat extension to push the waste over where it drops into the main tank . Yikes !
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Old 01-11-2019, 11:12 PM   #10
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We purchased a coachmen pursuit 31sb and had the same toilet flushing problem and found out that it was a common problem and coachmen installed a new macerating toilet under warranty for free. We no longer have problems with our holding tank. I even asked them to put a tank flush in and the did that too at no cost.
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