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Topic: Microphor bottom toilet seal (Read 750 times) previous topic - next topic

Microphor bottom toilet seal

I have searched the forums and have had no luck...I believe my wax ring is leaking and it manifests itself under the tile and into bedroom carpet..John Fittzgerald and I tried to diagnose this problem last night. We can't think of any other source for the water. My question is simple...is it realistic to pull this toilet off the floor and I'm leaving Tuesday AM for a two week vacation...AND is it a standard toilet wax ring under it or something proprietary and difficult to acquire??? Your help and expertise is greatly appreciated...and so you know...the toilet had no other issues at all..
2001 U320 42 tag with two slides
Build number 1583
Love this forum for all of it's help and members

Re: Microphor bottom toilet seal

Reply #1 –
Would help to know what toilet you have. You may get more response.

Roland
1993 U280 4341
2010 Jeep Liberty
The Pied Pipers

Re: Microphor bottom toilet seal

Reply #2 –
Mike,

If it is a 220 or 229 it requires a standard wax ring.  With the tile you may need an extra thick wax ring. We had to use one of these when we installed our wood floor to get a proper seal.  When you pull the commode make sure that the backing plate was installed on the hopper assembly as some have been left off.  If the glue has cracked and the backing plate is loose it will not cause the wax ring to compress.

Mike 2
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Microphor bottom toilet seal

Reply #3 –
Here is what my metaphor toilet base looked like when I removed the toilet.
Chuck Wiggy
Coloma, Wisconsin
Sold my 1999 U 320 40 Ft. M11 450 hp
Build # 5468
2009 Silverado

Re: Microphor bottom toilet seal

Reply #4 –
Here's a photo of Mike's toilet.  I believe it's a Microphor.
There appears to be a (about 1-1/2") spacer under it.

We searched for leak sources all over from the roof to basement and concluded it must be the toilet.  There isn't always moisture there - it appears only after a couple days of RV use.  I'm guessing it leaks just a little with each flush.  The grout in the tile has what appears to be hard water deposits working up; it appears not in the middle of the grout line but on the edge with the tile.  No odor at all.

So, standard toilet seal is used? 
I'm thinking Mike should wait until he gets back from his trip before trying to replace the seal - you never know what can of worms it will turn into.  The riser spacer is another factor that could go wrong.  I think I would remove it.  It appears to be made from a plastic or fiberglass and I can see a crack in it.
John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho

Re: Microphor bottom toilet seal

Reply #5 –
John/Mike

That is a LF-220 with the ADA riser plate.  The first risers were porcelain like the rest of the commode but NLA. The plastic ones may be still around but the last time I checked they were on backorder.  With that riser guaranteed that the wax ring is leaking.  You will most likely need to get 2 wax rings and double stack them.  On some commodes that are modified they pulled the floor flange up to get a proper height for a proper seal, If there wasn't enough pipe down in the holding tank some people put in 2 wax rings rather than replacing the floor flange and pipe.

One other thought is if there is no smell it could be fresh water coming out of the vacuum breaker, the cheap water regulator (hid under the back of commode in the supply line) could be leaking, or he may have a crack in the flush water valve body.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Microphor bottom toilet seal

Reply #6 –
Quote from: Pamela & Mike –
One other thought is if there is no smell it could be fresh water coming out of the vacuum breaker, the cheap water regulator (hid under the back of commode in the supply line) could be leaking, or he may have a crack in the flush water valve body.
Mike
Bingo!!
We discovered the water regulator was leaking.  Mike is replacing the regulator.
I don't know why it's needed.  It says 45 psi on it.  The whole coach should be regulated down to that.
I told him if he couldn't find another regulator of the same length he could replace it with a piece of pipe.
Later he did find a regulator of the same length so he's using that.
Thank you for your help.
John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho

Re: Microphor bottom toilet seal

Reply #7 –
I believe some of the water pumps are regulated at 55 psi.
Glad you found it.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Microphor bottom toilet seal

Reply #8 –
Quote from: JohnFitz –
Mike is replacing the regulator.
I don't know why it's needed.

FWIW I was told that it is there to prevent a pressure surge that could break/crack the bonnet of the on the flush water valve.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Microphor bottom toilet seal

Reply #9 –
Thank You everybody...especially John Fitz...he has been a God send for me and this coach..I have a detail vision issue and he has very good eyes. His help and friendship has been invaluable. I don't think I would still own this beautiful coach if not for him and this forum..I installed the new regulator and no leak...MIRACLE...lol
2001 U320 42 tag with two slides
Build number 1583
Love this forum for all of it's help and members

Re: Microphor bottom toilet seal

Reply #10 –
There are a several places where you can have a water leak without knowing about it until there has started to cause some damage.  One is under the false floor under the kitchen sink and another is behind the Microphor where its plumbing is hidden.  I've had both happen and learned that I need to install a water sensor/leak detector.  The solution is cheap and easy to install.  I learned its value when our "point of use" water heater leaked from under the kitchen sink in the house.  The alarm initially confused us (sounds like a smoke detector) because I forgot that I had installed it.

This is what I use in the RV now:  First Alert Battery Powered Water Alarm - BRAND NEW | eBay
2000 U320 mid entry  #5688
2006 Jeep Liberty


USMCR retired
SDFD retired
FEMA US&R TF8

Re: Microphor bottom toilet seal

Reply #11 –
Thanks Sven,

That looks like a very easy and inexpensive insurance policy.  I plan to get a couple. 

Richard
Jan & Richard Witt
1999 U-320  36ft WTFE
Build Number: 5478 Motorcade: 16599
2011 Jeep Wrangler Unlimited w/Air Force One
Jan: NO5U, Richard:KA5RIW
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