Redoing plumbing

[natehuffman]

Hi guys, I’m currently having my 1996 Excella renovated and I’m converting the bathroom to one side. In doing so, I’m moving the toilet a couple feet. They guy who is renovating it is thinking of just switching the plumbing of toilet to the grey water tank, and switching the shower to the black water tank. Can this be done? I’m not sure if the original black water tank has bigger drainage valves for waste (gross visual). Will I need to switch all grey water plumbing to the “new” grey water tank because I’m sure I could smell sewage coming from pipes if I don’t. Help I’m clueless here!

[Wolfe]

he needs to do it right and git new tanks with proper fitings, his way won't work.

[Cerberus]

Isn't there a sizable difference in capacity between the black and gray tanks? Usually black tanks are smaller, so just switching tanks would mess up capacity, wouldn't it? One usually needs more gray capacity than black: think showers, dishes, cooking, washing hands, vs. peeing and pooping (pardon the expressions).

Vivian

[Bill M.]

It would be a whole lot better to just leave it like it is.

[rowiebowie]

Welcome to the forum Nate!


An expensive ($1K) marine type macerator toilet might solve your problem.


The macerating porcelain toilet in my '2012 Airstream Avenue Suite works well (although I must premise by stating I have no experience with any other kind). It is listed on the Dometic (Sea Land) site under their Marine toilets.

The only reason AS didn't install a foot-flush gravity toilet in my unit; like other Avenues; is because they adopted a different floor plan for my Suite model. It required them to relocate the toilet and I guess they found it easier to pump the waste over to the black tank rather than relocate the tank under the new toilet location.

[Bill M.]

I guess my answer was a little terse. The macerating toilet might be just the solution. My daughter installed one in her house and it worked fine. Probably has some advantages for black tank use anyway. My initial response was based on the fact that changing the tanks seems like a lot of work and expense. You could pretty much put the macerator where you want it. To do it the way you want with the original tanks one would have to cut into the tank and mount a flange for the toilet. That might be doable. I would want to end up with the grey and black water systems seperated. One still needs to build up a quantity in the black tank and then dump.

Good luck with your vision.