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Toyo tires

Yahoo Message Number: 62320
While not strictly a CC issue you guys may be able to shed some light on a problem I have.
I just put 4 new Toyos on the back of our Intrigue. Funny thing is that I've gone all over these tires and can't find a manufacture date. Am I looking for something that Toyos doesn't put on their tires? I though all tire were meant to have a manufacture date on them.

By the way $2300.00 for the 4 installed. Not good not bad.

Bruce

2001 Intrigue #11278

Re: Toyo tires

Reply #1 –
Yahoo Message Number: 62321
Bruce,

Your installer probably mounted them inside out. There is no harm in this except that the date is only imprinted on one side. I have been told that the Manufacturers are scheduled to change soon to show date on both sides.
Daron Hairabedian, 98 allure 30226 with six new tires mounted inside out!

Re: Toyo tires

Reply #2 –
Yahoo Message Number: 62328
The date will be on the sidewall, they may have installed them with the date on the inside of the duals, maybe a mirror will let you see between the tires. It should look like a stamped area, actually molded into the tire sidewall, it should have 4 numbers like 1210 12 being the 12th week of the year and the year being 2010.

Mikee

Re: Flushing and Cleaning Black & Gray Tanks

Reply #3 –
Yahoo Message Number: 62351
What is the best method to flush and clean both the Black and Gray tanks. Is there a chemical or solution to add while flushing to sanitize and deodorize. I'm getting a foul odor emanating from my black tank in the toilet area.

Paul

98 Intrigue
#10487

Re: Flushing and Cleaning Black & Gray Tanks

Reply #4 –
Yahoo Message Number: 62353
Paul,

I would think these tanks would by nature always stink. Make sure the pea traps in the sinks or shower have enough water in them to keep the gases from coming up the plumbing. If you haven't used them in a while the water can evaporate and allow this to happen.
Kevin Burns

00 Affinity #5865

Re: Flushing and Cleaning Black & Gray Tanks

Reply #5 –
Yahoo Message Number: 62362
Paul, I agree with Kevin. Even if you install two brand new tanks and they are both going to stink within a short period of time (like minutes). Gray water often stinks worse than black.
I will add a couple of thing to what Kevin wrote. Most coaches typically only have a vent stack for each tank. Code calls to have a vent stack close to each trap (forgot the max distance). This can not always be accomplished in a coach so the ventless vents (think that is the name or something close) is used to provide trap venting. Look under the sink for a white PVC pipe that sticks coming up through the cabinet floor ending close to the top of the cabinet. On the top of the pipe if a fixture that basically is a one way air valve. It lets air in but will not let air out. The top should unscrew and inside is a round flat disk with a rubber like seal around the inside outer edge. One or two things can happen over time. The seal wears out or something gets in under it preventing it for sealing. With no seal the pipe will produce a stink.
They are not unique to motor homes and usually the assembly can be found at plumbing supply houses or Lowes/Home Depot. Usually you have to purchase the whole assembly but they are not expensive. If the disk on the new one doesn't fit the old one not to worry. The height of the pipe is not critical so saw it off and glue on the new one.
Another less common cause is occasionally the vent stack will slip down some to the point where the pipe is below the water level in the tank. This blocks off the main vent. Usually this problem is an initial construction fault and the problem crops up early in the coach's life.
It is unusual for the blank tank to stink inside the coach. Again with most coaches, not all, the flush sets right over the tank or close to it. The flush and the vent stack often are the only openings and most RV flushes do not work like a house flush that has a built in trap. Yes I am aware that some do operate like a house flush but the low water level in the flush is a good sign that sewer gas can come up.
Occasionally the donut ring under the flush can fail and it could let sewer gas come up into the coach but usually the flush will also leak water as well.

Hope this helps in chasing down find the problem.

Don Seager

2004 Allure 312046

What is the best method to flush and clean both the Black and Gray tanks. Is there a chemical or solution to add while flushing to sanitize and deodorize. I?m getting a foul odor emanating from my black tank in the toilet area.

Paul

98 Intrigue
#10487

Re: Flushing and Cleaning Black & Gray Tanks

Reply #6 –
Yahoo Message Number: 62368
Paul

Assuming your toilet is holding water which seals it from the tank, it could be that you have a bad flange gasket that seals between the toilet and black tank flange. If so, you would need to replace this gasket by removing the toilet. I did this for the reason you state and it solved my problem. I coated the new gasket with silicone grease. CRC makes a dielectric grease in an aerosol can that is 100% silicone grease.

Good luck.

George Harper
04 Allure 31093

Re: Flushing and Cleaning Black & Gray Tanks

Reply #7 –
Yahoo Message Number: 62369
Paul,

I agree with all that has been covered very well by Don & Kevin. Also, odors can be very elusive. They may seem to be coming from the black tank, but actually be coming from your gray tank through your washer "P" trap if it is dry. I have heard of some coaches that actually had washers installed without "P" traps by inexperienced "techs" .

Here is one other factor for all of us to consider. Vacuum physics!
1. If you have your powerful Fantastic Vent fans operating with windows closed, the vacuum created may cause the black tank plumbing vents to reverse air flow. Unfortunately these roof vents are not fitted with anti reverse check valves. This direct path will allow the odors to be sucked into the coach while flushing.
2. All coaches create a vacuum inside while in motion. The negative pressure will be directly proportional to your speed. It is a physical phenomenon described by Bernoulli's Principle (physics 101). If your co-pilot or guests flush while the coach is in motion the same reverse air flow may occur. This effect will be exacerbated if any roof vents are open.

BTW, there are eco-solutions that will clean your black tank by biologically digesting the waste (ugh). It just takes some time and patience. Check at any RV supply.

Daron Hairabedian, 98 Allure, 30226

Re: Flushing and Cleaning Black & Gray Tanks

Reply #8 –
Yahoo Message Number: 62370

Paul: After I dump, and get ready to head to a new destination I put a gallon or two of water in the black tank and add about a cup of Calgon water softener. As this sloshes around while I drive it loosens any crud left in the tank after a few uses I never have odors entering the coach. The Calgon I use is the box of flakes. There are various other formulas I have heard but this works for me and is simple. I did have odors before using this method especially with a window open, but no more. Barie Boas 94 Concept 5111 P.S. I don't have a problem with the grey tank but am sure same treatment would work.

Re: Flushing and Cleaning Black & Gray Tanks

Reply #9 –
Yahoo Message Number: 62373
Paul, I read through the replies to date, and you have received some great information. One thing you can count on, asking how a long time RVer treats his black tank can cause more controversy than asking which is better, Ford or Chevy, best tires for RVs, political parties, religion, and the best way to make BBQ.
I have been RVing full time for a little over two years, and do not use any treatment in my black tank or grey tank. When I first moved aboard there was an odor from the black tank, due to the coach sitting unused for a couple of years, and I used a pine scented package stuff to help the odor. The treatment was (nearly) as bad as the odor.
I finally used Rid-X septic tank treatment, and that did the trick after a few days. Now I only use lots of fresh water, any t-paper that is on sale, and let it go at that. I have not added any Rid-X for a year or more. My tanks both have rinsing gadgets installed, and after I dump the black tank I close the dump valve, run the rinser for a few minutes, dump the result, close the dump valve and leave it alone until it is ¾ full again.
I used Rid-X in the gray tank initially (pulled the shower drain cover off and added it there) and have had no odors since. Food bits and soap scum going into the gray tank can make quite a stink.
Of course, leave the black tank valve closed until dumping, otherwise liquids drain off, leaving solids, and that is not a situation you want to deal with. I leave the gray tank drain open when on full hookup.
Constant use by one person or group keeps the bacteria happy once it is cultured to suit the waste, or that is what I have had explained to me by a septic tank expert, waste water engineer.
Dry "P" traps, leaking seals, leaking vacuum breaker/vent gadgets can all be a problem, and need to be checked as mentioned before. The under sink vent caps are available in a standard size and I bought two at a hardware store recently for about $3.00 each. If you just stop up the vent, or rubber band a baggie over it, your "P" traps will be emptied when water is let out of the sink. Been there, done that.
Running the vent fan while the WC is in use dictates an open window for good ventilation. As I am the only occupant I have no experience using the WC while driving. I shut the fan off when flushing to avoid bringing black tank odors into the coach when the flush valve is opened, then turn the fan back on for a few moments after the flush is accomplished.
That works very well for me. Be sure to get a fine screen to use in your kitchen sink to catch as much food waste as you can.
Jack Nichols, 2003 Intrigue 11527

Re: Flushing and Cleaning Black & Gray Tanks

Reply #10 –
Yahoo Message Number: 62384

Paul

If you are smelling black tank odors right at the floor with water in the toilet, it is possible the seal between the stool and black tank is compromised.

Dave

aka Billy Byte (trusty hound)
2000 Allure #30443

Re: Flushing and Cleaning Black & Gray Tanks

Reply #11 –
Yahoo Message Number: 62411
Paul,

You have already received probably more good info than you bargained for. Hopefully, you have solved the problem by now.
However, here is another important factor that I forgot to mention in my previous note.
If your coach is like mine, you have a Traveller ceramic toilet. During the period when our coaches were built, some of the ceramic bowls had a "vent hole" cast into the upper perimeter wall. This vent can allow odors to escape from the black tank directly into your coach. I discussed this with Thetford Customer Service, about four years ago, . They admitted that it was a very bad engineering error that they corrected with subsequent models. Examine the bowl. If you find a vent hole about 1/2" dia., call Thetford. They will send you their "fix". It is a simple vinyl plug that you can insert to eliminate this avenue of odor.
The expensive fix is to purchase an up-dated bowl.
I am curious to know if any of these suggestions corrected your problem.

Daron Hairabedian, 98 Allure, 30226

Re: Flushing and Cleaning Black & Gray Tanks

Reply #12 –
Yahoo Message Number: 62413
Daron, thank you. I forgot that vent thing when I wrote my novel about the issue. I just fill the bowl up to about the rim to keep water in the trap, but a plug is a much better fix.

Jack Nichols, 2003 Intrigue, 11527

Re: Flushing and Cleaning Black & Gray Tanks

Reply #13 –
Yahoo Message Number: 62414
Paul & Jack,

Here is another bit of advice that the Thetford Customer Service Rep relayed: Remove the shroud and unbolt the ceramic bowl from the base. This will expose a rubber gasket about the thickness of a quarter. This gasket has a 1/4" hole in it that aligns with a nipple in the toilet base. this is another engineering error that can lead to foul odors. Turn the gasket over so that the nipple hole is now covered by solid gasket rubber. You will see what I am talking about when you get in there. Then re-assemble.
While I was at it, I removed the base and replaced the foam "donut" seal between the base and the floor flange.

No more foul odors from this area!

Daron Hairabedian, 98 Allure, 30226

Toyo tires

Reply #15 –
Yahoo Message Number: 67464
I have the larger Toyo's on my 2004 inspire, and my GPS indicates that I am going 10% raster that the speed omiter

Dantaut

2004 Inspire 51093

Re: Toyo tires

Reply #17 –
Yahoo Message Number: 67470

Dan,

The speedo can be changed to be accurate using the document I sent earlier. If you would like a copy let me know and I will forward. It will work for any coach with a Teledyne brand gauge - At least the 04 and 05 Inspires seem to have used them - I don't know how many others.

Bob (rthandren@...)
'05 Inspire 51178