Tom
Anyone cut through the floor from below to expose the shower drain?

Want to replace that line.
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mikes
You should probably say which model you have.
Mike
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Tom
Haha! That would help wouldn't it?

2014 original 155, drop floor.

From the inside, it appears that the shower floor is an inch or so above the chipboard,
but I have no idea what's in between.

The green/white drain hose seems rotten and is ripping along the spiral toward the drain. Ack.

Would like to replace starting at the drain, so...
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sunvalleyjoe
I have a 150 guess shower is the same. I had mine out(the shower pan) and there was a thick rubber pad under it. I believe the shower had never been remove so I would think they are  the same.But with Riverside who knows. Hope this helps. Ps I do not have a drop floor in the 150.GBA!!SVJ
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Tom
How did you get the pan out?
Mine looks like it went in first,
so would come out last.
That's why I was thinking of going from below.
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sunvalleyjoe
I had a leak in the shower valve and there was not enough of play in the hose to change out valve. My water line ran under shower so we lifted pan up part way to have access to water line. Was a pain in you know. Yours might be routed different my line run under shower. Good luck I cannot work on my unit any more stuck with a local RV dealer who hates Retros. GBA!!SVJ
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efranzen
I have a 177 and yes, I made an X cut in the waterproof paper and then cut a hole in the floor from below. I found the fitting that connect the shower to the trap was broken. I replaced it and then cover the hole with a piece of aluminum and then taped the X closed over it.
2015 177
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Tom
Thanks efranzn, that's what I was thinking. 

Jigsaw with a short blade to cut through? 
How big a hole did you need to make to find the drain and get your hands in there? 
My drain line comes out at an angle so seems like the shower drain is forward of the spot the line exits the floor.  Yours similar?
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efranzen
I drilled some small holes to establish where the pipe was and then used a sawsall to open about a 6"x12" hole under the trailer. Nice that this drain was located between any bracing, so the space was wide-open. 
IMG_2646.jpg 
2015 177
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Tom
There's the 1000 word picture. Thanks!
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Tom
Getting around to this job. 
Made the cut, replaced the hose, folded it over to block and added water from shower above to leak check.  
LEAKS!!!

Found this to be the shower drain fixture:
[image] 
When I disassembled, there was no o-ring, glue, nothing holding the two parts together to make a seal.
Question - should there be? 

If not, it will leak when the water supplied from shower exceeds ability to drain.  
I sealed it up (I hope) with some silicone caulk and reassembled.  Will leak check again afterwards.  Ack. 
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Tom
Got it.
There was a gasket in the tub, between shower floor and drain.
No gasket between the fixture posted above and shower floor over it.
Water coming up inside the threaded parts, (flat sides on male thread) over the top and out.
Made a gasket, used a little plumbers dope, no leaks now. 
FWIW.
🙂
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