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Old 09-11-2008, 11:27 AM   #15
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Portage , Michigan
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Nothing lasts forever. Pretty sure everybody knows that. I do not have any hard truth, but I can bet the rubber will last 30 plus years seeing as the water tanks are inside and away from the sunlight. I would also be safe to say the cleanliness of the tank will go bad before the rubber goes bad. If you can keep your fresh water tank clean on the inside for 30 years, the rubber should also be safe.


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Old 09-11-2008, 11:35 AM   #16
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Corona , California
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Rubber grommets

Our shop experience says that typically, the rubber gommet inserts for pipes, etc, last an average of about 5 to 6 years, and then starts leaking.

That's not good for a fresh water tank, not to good for a gray tank, and a health hazard for the black tanks.

Rubber grommets for the probes however, seem to last 20 to 30 years.


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Old 09-12-2008, 06:38 AM   #17
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In my opinion some repair shops use low quality parts to keep customers coming back, you surely do not want to go out of business like Revolution RV, in Santee California.

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Old 09-12-2008, 08:23 AM   #18
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Hey, be nice guys,,, There are different types of rubber and some do last longer than others Most will start to break down after 5-6 years but some will last a lot longer If not exposed to the sun...

You will not need to drill a drain hole as you can put a tee off of your outlet hose. so you will only need the inlet, outlet, and probe holes...

The probes do use rubber gaskets so I would check them every few years.. They are only a couple of dollars each so to replace one isn't to big a deal.....


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