Toilet

Jan 19, 2010
12,918
Hobie 16 & Rhodes 22 Skeeter Charleston
That is for a port-o-potty. They slide up into slots and keep it from sliding around
 
Dec 2, 1997
9,011
- - LIttle Rock
It's DOMETIC (no S), formerly SeaLand Technology. Portapotties are available in 2 sizes--2.5 gal an 5.5 gal--and two versions--portable and something called an "MSD" version. MSD portapotties make a lot of sense on most boats smaller than about . 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 off the boat to empty it.
A 5-6 gallon model holds 50-60 flushes...you'd need at least a 30 gal tank to hold that many from a manual marine toilet. 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.

Check out the Dometic/SeaLand 975MSD Sanipottie

--Peggie
 
May 24, 2004
7,213
CC 30 South Florida
That may be good to secure and store the Porta-Poti but might no necessarily be the best location for use. We have a 22' trailerable and we place the poti in the center of the cabin and use a curtain over the companionway for privacy. At night we move it out to the cockpit, "al fresco". A fiend of mine purchased a power boat which came with a porta-poti installed in the cabin; it was located in such a location that to use to pee you had to bend your back backwards causing real balance and aiming difficulties. The point is put it where it makes more sense for you.
 
May 27, 2004
2,059
Hunter 30_74-83 Ponce Inlet FL
I agree. Seems that wood post would have to be straddled to use the head. (I used to have two of that model head)
 
Mar 1, 2012
2,182
1961 Rhodes Meridian 25 Texas coast
I have a Dometic MSD 5.5 gallon on Tehani. Installed it while anchored in Boot Key Harbor. Never been unhappy with it. With two aboard we got 7-8 days between pump outs. Sailing single hand I usually go 15-18 days. Note- it is never used for urine, except incidentally.
 
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Mar 1, 2012
2,182
1961 Rhodes Meridian 25 Texas coast
I have two ladies who sail with me occasionally. Both have little funnel devices that they use- they can stand at the shrouds, and pee overboard :)

Me, I have an empty coffee can in the cockpit.
 
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capta

.
Jun 4, 2009
5,069
Pearson 530 Admiralty Bay, Bequia SVG
That may be good to secure and store the Porta-Poti but might no necessarily be the best location for use. We have a 22' trailerable and we place the poti in the center of the cabin and use a curtain over the companionway for privacy. At night we move it out to the cockpit, "al fresco". A fiend of mine purchased a power boat which came with a porta-poti installed in the cabin; it was located in such a location that to use to pee you had to bend your back backwards causing real balance and aiming difficulties. The point is put it where it makes more sense for you.
Why is it men, especially on a boat, but not necessarily, feel it is their right and duty to stand up to pee into a head/toilet?
At sea, it is at best a foolhardy endeavor, and even at anchor or at the dock it just leaves so much more of a mess for someone to clean up. Get off your feet boys and have a seat; whoever cleans the head will much appreciate it.
 
Apr 8, 2010
2,237
Ericson Yachts Olson 34 28400 Portland OR
Why is it men, especially on a boat, but not necessarily, feel it is their right and duty to stand up to pee into a head/toilet?
At sea, it is at best a foolhardy endeavor, and even at anchor or at the dock it just leaves so much more of a mess for someone to clean up. Get off your feet boys and have a seat; whoever cleans the head will much appreciate it.
Decades ago I learned the "Everyone Sits!" rule from a skipper I did deliveries with.
We enforce it. Head compartment stays clean and there is less chance of injury when the boat rolls. Depending on how the platform is built that the head is attached to, kneeling works well on some boats, too.
 
Sep 30, 2013
3,683
1988 Catalina 22 North Florida
For further comparison, we have the Thetford 55P, also 5.5 gallon holding. I only use it for #2, the Admiral uses it for #1 and #2. We get six, maybe seven days.

At night, this is my friend. Oddly, it is called a "urine collection container". :)


 
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Dec 2, 1997
9,011
- - LIttle Rock
pretty much, yes. as I said earlier, I have a Dometic MSD- 5.5 gallon. No space for many times of peeing.
A lot more space than you think it has. A 5.5 portapotty--portable or MSD--holds 50-60 flushes. The average adult uses the toilet 5x/24 hrs. So that's 5 flushes/day/person...which should take 2 people at LEAST 5 days to fill it up (most couples report getting 7-8 days). If you're in coastal waters that offer immediate access to open ocean beyond the "3 mile limit" or cruising in open ocean, installing a y-valve and macerator or manual diaphragm pump in the pumpout line allows you dump it at sea. Even if you're only a "weekend warrior" with a couple of kids, you should have plenty of capacity to last at least through a 3 day holiday weekend.
--Peggie
 
Jan 19, 2010
12,918
Hobie 16 & Rhodes 22 Skeeter Charleston
Now, what do you do? Hang over the stern railing and dump as you go! Just have everyone wait till your in the right area for dumping...LOL
I guess you could pour it down the galley sink... but that is kind of nasty. :yikes:
 
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Mar 1, 2012
2,182
1961 Rhodes Meridian 25 Texas coast
LOL my galley sink has no drain- it lifts out and dumps overboard. But dishes are usually done in cockpit anyway.

MY boat has zero openings below the water line-none. Used to be 7- all glassed over. Cockpit drains moved to above waterline and fitted with valves.