The built-in storage tube on the Rialta allows for nothing more than about a 
6-10 foot long sewer hose and that's only if you can fully compact all of the coils 
to squeeze the entire thing into the tube.
Several modifications have been proposed starting first with just an additional 
storage tube and ending with the mod to the existing storage tube that will allow 
up to 27' of sewer hose to be stored!
  I have found that at some campgrounds, the location of the sewer 
  connection is not compatible with the 10-foot sewer hose that comes with the Rialta.  
  A 20 foot hose will not fit into the built in storage tube.  To get around this 
  problem, I made up a 26" long tube of 4" DWV (drain-waste-vent) pipe with a cap 
  in place on one end and a connector on the other that accepts a screw in plug.  
  It easily holds a 20' sewer hose.  I mounted it longitudinally under the right 
  rear corner of the coach along side of the trailer hitch angle.  I used stainless 
  steel worm-drive clamps to hold it in place.  I have posted two pictures in the 
  photos section of this list.
  I originally made up a 5' long tube last year and mounted it 
  transversely below the trailer hitch.  It was a bit of overkill for the length 
  of hose but I needed it that long in order to get mounting points at each end 
  of the trailer hitch.  Well, this was a bad idea as it hung down too low and would 
  bottom out on such places as steep driveway entrance ramps to gas stations or 
  at similar type spots.  I re-worked the tube this spring and came up with the current 
  design, which works fine.
  Richard Cox
  2002HD
  From: "Holly H. Towne" <towne@...>
  To: <Rialta-Tech@yahoogroups.com>
  Sent: Wednesday, March 03, 2004 7:35 PM
  Subject: [Rialta-Tech] Harry Pinchot's Sewer Hose Modification
  Back in June of 2003, Harry Pinchot posted a message (#8268) 
  about his sewer hose modification that increased the length of hose that can be 
  stored by cutting and then lengthening the tube through the generator compartment 
  and then routing it up and forward under the back dinette seat.
  I had just gotten through my first adventure with dumping the 
  black and gray and all other colors of interesting stuff on my legs and feet because 
  of a too-short hose, so the idea had my attention.
  I went out and bought all the right stuff, printed out the pictures 
  and instructions, got additional input and guidance, and fearfully started in 
  to make it work....last August.  I couldn't make it work.  I believe I have cut 
  my full length piece of white 4" PVC more than anyone else trying to get it right... 
  and I won't be sharing the leftover piece to help someone else... there isn't 
  any.
  Now before Baldy tells me I'm too stupid to own a Rialta and 
  I should sell... quick before I do any more damage to it... *grin* I would like 
  to report that today I finished the job.  There was a reason it wouldn't work for 
  me, and I figure it's important enough to mention.
  I went to Home Depot to get my 'parts' and after keen observation, 
  I realized that Harry's 90 degree connector looked a lot different from my 90 
  degree elbow.  His shows a long, graceful sweep. Mine made the turn in half the 
  space.  Looking more closely, I noted that my end cap was flat on top, while his 
  looks curved.  Sure enough, I think that Harry's solution came through Lowes and 
  their pipe brand is different... and that made a HUGE difference, buying the 45 
  and 90 degree elbows at Lowes yesterday made it possible to make the turn at the 
  top rear of the bench that I had been unable to accomplish before.
  So the moral of the story, if you want to make the mod that 
  will let you store 27' of sewer hose instead of the original, get your parts at 
  Lowes to make it a lot easier on yourself.
  hht
  99QD with an awesome sewer hose!
   
  Holly,
  What you did was describe the difference between a regular 90 
  degree "el" and a "long sweep el."  The former is used on the venting side of sewer 
  systems because sewer gas doesn't really mind the sharp turn, while the long sweep 
  el is used on the fluid side because fluids DO mind.  I think HD does have the 
  long sweep els too, if you know exactly what you want and where it might be.  But 
  you're right, Lowes usually has a broader selection of plumbing fittings.
  Bernie
  Bernard D. Ritchie, DVM
  Ephrata, PA