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Topic: Roof Vent Cap (Read 615 times) previous topic - next topic

Roof Vent Cap

I hope I didn't get misinformed. I wanted to change out the original vent cap on the coach, and asked the forum for advice. I bought the Lippert 360 unit , which was recommended. When I went to install it today, I got put off by the method the existing unit is installed. The base of the existing unit is pretty big, and has about eight screws to the roof. I just don't want to open a " can of worms" just because I wanted a better system. Might be selling it to one of you guys. Any advice?
Glenn and Amy Beinfest
2001 36' U320
#5812
2014 Honda CRV

No Whining on the YACHT

Re: Roof Vent Cap

Reply #1 –
Very helpful...Thanks, Twig. I'll get on it tomorrow.
Glenn and Amy Beinfest
2001 36' U320
#5812
2014 Honda CRV

No Whining on the YACHT

Re: Roof Vent Cap

Reply #2 –
Pics
Glenn and Amy Beinfest
2001 36' U320
#5812
2014 Honda CRV

No Whining on the YACHT

Re: Roof Vent Cap

Reply #5 –
I had a Lipport 360 on another RV, it worked great.  Before Lipport bought it, the previous mfg showed comparisons of it beating the others.  I also liked its low profile, less likely to snag anything.
97 U295 40, Build #5040, 6C8.3 325 HP
Oregon Continuous Traveler
Samsung Residential #RF20HFENBSR,
Xantrex SW2012, (3)AGM8D Hse, (2)AGM Grp24 Eng, Victron BMV-712, 1800w Solar 4 LG & 2 Sunpower
Extreme Full Body Pt w/hdlmps, new furn/floor, 4 down Lexus 2004 GX470 AWD curb weight 4,740 lbs
Prev: 1990 Barth, 10L 300 2 yrs; 91&92 Monaco Signature, 10 yrs, 10L C 300 &  6C8.3 300; 1997 ForeT 6C8.3 325 since May 2017.  Employed by Guaranty RV 14+ yrs.  Former VW New Car Dlr/Service Dlr, Sales Mgr, Rv Sales, and Service Adviser from 1968-2017
"Don't criticize what you can't understand" Bob Dylan

Re: Roof Vent Cap

Reply #6 –
Why change it? There's really nothing to go bad on the original.
jor
93 225
95 300
97 270
99 320

Re: Roof Vent Cap

Reply #7 –
Quote from: jor –
Why change it? There's really nothing to go bad on the original.
jor

On my previous RV I was getting tank oder in the rv all the time when driving (I also had a bad flush bowl ball water seal, bowl would not hold water).  After replacing with the Lipport 360 this stopped as the previous vent did less to syphon out the tank fumes.  I later then changed the the toilet bowl ball water seal.

I bought a Lipport 360 and have not installed the Lipport 360 yet.  I do not have any tank issue with fumes.

On the previous rv I remember no issue with installing, I did have to cut off the PVC to a lower height, as it protruded from the roof too far.  I. had to reseal around the base, drilling new holes to fit,
as I remember, the instructions were easily followed.

To be fair I do not remember what was the previous vent, I do not remember it being the tee type as on my current FT, I remember it being more circular in shape.
97 U295 40, Build #5040, 6C8.3 325 HP
Oregon Continuous Traveler
Samsung Residential #RF20HFENBSR,
Xantrex SW2012, (3)AGM8D Hse, (2)AGM Grp24 Eng, Victron BMV-712, 1800w Solar 4 LG & 2 Sunpower
Extreme Full Body Pt w/hdlmps, new furn/floor, 4 down Lexus 2004 GX470 AWD curb weight 4,740 lbs
Prev: 1990 Barth, 10L 300 2 yrs; 91&92 Monaco Signature, 10 yrs, 10L C 300 &  6C8.3 300; 1997 ForeT 6C8.3 325 since May 2017.  Employed by Guaranty RV 14+ yrs.  Former VW New Car Dlr/Service Dlr, Sales Mgr, Rv Sales, and Service Adviser from 1968-2017
"Don't criticize what you can't understand" Bob Dylan

Re: Roof Vent Cap

Reply #8 –
When that tee is removed, you will find a 1 1/2 inch pipe coming out of the hole of the same size.  The new product will fit over the pipe and seal appropriately.  You should not have any issues with a leak, etc.  Just use dicor under the plate and on top of the screws when done.
Joe & Dottie Allen
Sold!  December 2023.      2000 U320; build # 5645
Our coach " Maxine"
Motorcade #  15922;  Escapee 150950; FMCA F330833; Boondockers Welcome;  Harvest Hosts;  Thousand Trails
'98 U320 from 2000-'06
USAF '62-'66

"Do not spoil what you have by desiring what you have not; remember that what you now have was once among the things you only hoped for." ―Epicurus

Re: Roof Vent Cap

Reply #9 –
Quote
(I also had a bad flush bowl ball water seal

Yea, I can see where that would cause odor but really, other than that, you just have the air admittance valves. I've always replaced the stock ones with the Sudor valves. I've had the stock ones fail but never the Sudors. My point is just that the system shouldn't need to be modified to avoid the odor issue. However, if I get the problem and can't fix it I'll be checking old posts to see how you installed your new Lipport!
jor
93 225
95 300
97 270
99 320

Re: Roof Vent Cap

Reply #10 –
Quote from: jor –
Yea, I can see where that would cause odor but really, other than that, you just have the air admittance valves. I've always replaced the stock ones with the Sudor valves. I've had the stock ones fail but never the Sudors. My point is just that the system shouldn't need to be modified to avoid the odor issue. However, if I get the problem and can't fix it I'll be checking old posts to see how you installed your new Lipport!
jor

Agree Jor;  The one on our coach is behind the cabinet door behind the commode and when I opened the door, found the air admittance valve broken.  Replaced with one from Lowe's and good to go.  Normally, the little rubber flapper is the culprit with either sticking or warped. 
Joe & Dottie Allen
Sold!  December 2023.      2000 U320; build # 5645
Our coach " Maxine"
Motorcade #  15922;  Escapee 150950; FMCA F330833; Boondockers Welcome;  Harvest Hosts;  Thousand Trails
'98 U320 from 2000-'06
USAF '62-'66

"Do not spoil what you have by desiring what you have not; remember that what you now have was once among the things you only hoped for." ―Epicurus

Re: Roof Vent Cap

Reply #11 –
I had a coach one time and the trap on the washer/dryer dried out that let the fumes from the grey tank get in to the coach.  Pulled it out of storage and by the time I got home 2 miles away my eyes where burning.  We aired out the coach and ran some water through the washer and that took care of it. From then on every time we took it out we ran some water in the washer just in case.
 

Re: Roof Vent Cap

Reply #12 –
Just got off the roof. Like Joe said, and like the video Twig sent, it was pretty easy. I would get it out of the garage, David. Didn't even have to trim the existing pipe coming through the roof. Hope I can tell if there is a difference.
Glenn and Amy Beinfest
2001 36' U320
#5812
2014 Honda CRV

No Whining on the YACHT