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Jim,
It would not be correct to call the task you have embarked on
a "popular" job but it is a common job. Last October my daughter
and I removed the tank cover, black water tank, and fittings from her 72
27' A/S and I have been slowly working on the same job on a '66 Safari is am
doing a light restoration on. Also, Joy Hansen has just put his tank and
tank cover back together in a '69 Safari. Nick Novia has also done one
recently and he knows a shop in CT that can "weld" your tank.
I hate to be the bearer of bad news but it is very likely
that, if you haven't already removed the tank cover and holding tank, a "small
repair" to the vent fitting is probably not the extent of the problem you are
facing. In most cases, the rear frame may have sagged, or the angle iron
cross-members which support the holding tank have rusted and allowed the tank
cover and tank to sag, breaking the vent stub as well as the toilet flange or
tank top. Your holding tank cover may very well be rusted badly, as many
older trailers are.
If you haven't already removed the tank cover and tank, I
recommend you do so. Then, once you know the condition of tank cover and
tank, list members can offer additional advice. It is possible to have
your existing tank hot air welded if it is not damaged too badly and new tanks
can be purchased. Any tin bender can manufacture a new tank cover, and
angle iron supports are simple angle iron cut to the correct length. If
the drain fittings are broken, it can get a little more
complicated.
If you have already determined that your only problem is the
vent stub, you are fortunate and can ignore my advice.
Good luck.
Harvey Barlow
Lubbock, TX
WBCCI # 1171, WDCU, VAC
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