Kafn8td wrote:
It is a 2011 Cruiser Fun Finder XT276 TH. I was told it was manufactured that way to help with the water to solids ratio.
edit - I didn't consider the different size pipes. I'll have to take a better look at it this weekend.
I was looking at the specs of the current model year XT276 and see that it has a 38 gallon black tank and 63 gallon grey tank.
http://www.cruiserrv.com/products/fun-finder-xtra/floorplans/item/xt-276I can only wonder if they increased the grey tank size, and now have the shower drain into the grey tank?
I would rather recommend installing a new tank for the shower water, and avoid letting the shower water connect to the black tank, just in case it might overflow.
Tank-Depot.com is one place that sells new tanks. You would also need to figure out a way to support the tank, and relocate the plumbing lines. Then connect the new and factory grey tanks together, so they will drain at the same time.
I think that one of the main health reasons for keeping the black water out of the grey tank is that bacteria can crawl up the piping and end up in the kitchen sink. Much more difficult when the tanks are separated by a valve.
We had a recent E-Coli bacteria scare here in Portland OR recently and had to boil water for about 3 days - just a week ago. They say it could have been a bird that died in the 14,000,000 gallon open water reservoir, where the water 'should' is treated before entering the Portland water piping system.
E-Coli can move around through moist areas, such as the tubing in your water system.
Fred.