Newport 27 ft blackwater tank

[Jimfish]

Hi I'm new to the form and I just bought a 1978 Newport 27 and I'm wondering if anybody ever installed a blackwater tank in that one I know the original had a small 6 gallon tank but this one does not any help would be appreciate it

[peghall]

I see you've just joined our merry band boat owners...welcome aboard!

Instead of a traditional marine toilet and holding tank with all the necessary plumbing that'll use at least a third of your storage space, another idea worth considering:

On any boat much smaller than about 30' a self-contained system—an "MSD" portapotty--makes a lot of sense. The "MSD" designation in the model name/number means it has fittings for a pumpout line and vent line, and is designed to be permanently installed (actually just sturdier brackets than portables, so you could still take it off the boat if you absolutely have to), which means that although it's still called a PORTApotty, you don't have to carry anything including urine jugs off the boat to empty it.

A 5-6 gallon model is household height and holds 50-60 flushes...you'd need at least a 30 gal tank to hold that many from a manual marine toilet and I'm not sure a "composter" can hold that much poop and organic material needed to absorb the liquid in solid waster (which, btw is about 75% water). No plumbing needed except a vent line and pumpout hose--so no new holes in the boat...and -0- maintenance needed except for rinsing out the tank--which you can do with a bucket while it's being pumped out. Total cost including the pumpout hose and vent line is about $200--a fraction of what you'd spend for toilet, tank and all the related plumbing needed. And the best part is, you have all the advantages of a toilet and holding tank without giving up a single square foot of storage space.

If this idea appeals to you, check out the Dometic/SeaLand 975MSD

--Peggie

[roverhi]

I went with a C Head desiccating toilet for my Sabre 28. The PO installed holding tank wiped out the hanging locker and had no overboard discharge to empty it offshore so it was a non starter. Desiccating heads, commonly inaccurately called composting heads, take up little more space than a regular marine head and eliminate the headache of a through hull.