Toilet identification help

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mncruiser

Senior Member
Joined
Aug 6, 2017
Messages
366
Location
United States
Vessel Name
Phoenix
Vessel Make
Mainship 390
Hey TF crew! New to me (almost mine) 2001 Mainship 390 passed its land survey today. I'm now feeling good about planning projects to be started after a sea trial in a few weeks.

What kind of head is this?
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The pump says Model 37072-0092 and it says "Quiet Flush"...but IT IS NOT QUIET!! I had a vacuflush in the last boat and the pop and pump of that was much quieter than this. This sounds like a grinder with an added sucking sound. It's horrible haha!

I've learned enough here that I kind of know what I'll be replacing it with, a Marine Elegance head. Are they much quieter? Hope so! Main reason for the ID is replacement planning.

Here is the output from the not quiet pump -
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With this project I'll also be replacing all the hoses, they are all likely original and are a bit smelly.

It looks like this was converted to tank water flush via this doo-dad..assuming this is an anti-siphon valve sort of thing. Any concerns with this setup?
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The vertical white hose runs to the water input on the toilet. The horizontal line T's with the cold water supply line to the head sink.

And this....is the almost owner! Happy building my fixit/improve it list. There will be much more to come. And once she is floating and not covered in 2 years of dust.....PICTURES!
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TTFN...and as always, Thanks!

MNCruiser
 

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Go with Raritan Marine Elegance - I replaced two Galley Maid/Rube Goldburg contraptions with two Marine Elegance. Never looked back. Elegant simple solution.
 
It maybe a Jabsco Quiet Flush, and no they are not. Congrats on your new boat. You will love the ME head. I have out them in our last 2 boats.
 
The Jabsco 37072 is a replacement pump motor assembly for several Jabsco Quiet Flush toilets. If the toilet was originally a sea water toilet, it was most likely a 37245, which uses a remote intake pump. If you intend to replace it with a Marine Elegance, you need to measure the space, not the toilet...you won't need anything that has to do with it. You can download the "Installation, Operation and Maintenance Instructions" from here Raritan Marine Elegance Owners Manual The wiring specs are critical so I'd plan on ripping out all the wiring for the existing toilet and starting from scratch because it's unlikely to be what's needed for the ME to work properly and you don't want to try to cobble any of it together with what the instructions call for.

It looks like this was converted to tank water flush via this doo-dad..assuming this is an anti-siphon valve sort of thing. Any concerns with this setup?


That "doo-dad" appears to be a solenoid valve in an intake line connected to fresh water plumbing. I can't tell what the rest of it is.

And I concur 100% that ALL the hose--including that corrugated sink drain line!--need to be replaced.

This retailer has the best price for the Marine Elegance Boatersland Marine Elegance

You'll want to use Raritan SaniFlex hose. Defender has it for < $10/ft and they sell it by the foot.
Raritan Sani / Flex Sanitation Hose at Defender


We should prob'ly talk about your holding tank and its plumbing too.


--Peggie
 
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You’ve identified exactly what it is. The reason it is called Quiet Flush is that the flush water is supplied by a remote pump. In your case your fresh water system pump. In the simpler older style Jabsco toilets (37010 series) the flush water is supplied by a rubber impeller pump attached to the motor. That is a loud pump. You’re lucky you only have to listen to the discharge pump.
 
And I concur 100% that ALL the hose--including that corrugated sink drain line!--need to be replaced.

We should prob'ly talk about your holding tank and its plumbing too.


--Peggie

Hi Peggie! Thanks for your reply.

What's the skinny with the sink drain line? It looks like they used it for the sink drain, shower drain, and all the bilge outputs too. Is it the type of hose?

I do have your book, and several tips helped me on my last boat. Thank you!

Staring a lot at the holding tank today. Access is a problem, but if I cut a hole in a bookcase thing in the mid cabin, I think I'll have nearly full access to what I need to replace.

I noticed the vent goes to a likely useless vent filter, and based on the 4 different bottles of holding tank treatment, hoses are permeated and all need to go.

There's a macerator pump hooked up, WITH a valve handle on it..WITHOUT a lock or tag or anything to stop a discharge. I'll be in the great lakes for at least the next 5 years...likely more. Do I cap that hose/fitting off completely?

I've been half paying attention the last few years to some of these topics, but I feel like I'll need to add a cross-vent to the tank...remove the useless charcoal filter?

Thanks! Y'all are the best!
 
It very quiet, but not silent. You will hear a motor, the macerator, but it isn’t anywhere near as loud as a quiet flush, thank goodness. And you can get the Smart Flush panel to allow you to pick the way you flush the head. Big improvement.

Absolutely use SaniFlex hose. And if you can add a vent out the other side that is optimal. Get rid of the filter. I would like to see 2 1” vent hoses, one on each side so you get flow through air. If you can get air into the holding tank you won’t get the horrible anaerobic smells.

I don’t like using the ridged plastic bilge pump hose anywhere on a boat. It is crap. And it traps stuff in the ridges. It would be nice to use smooth bore hose for the drains.. if they are 1” or 1.5” you can use the SaniFlex hose since it is very flexible and so it is easier to get fitted in place, but it is more expensive.
 
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The solenoid looks like the one for the freshwater version of the QF, so maybe it wasn't actually converted from raw water... but meant to work with pressure water from the git-go. No pump for seawater, etc.

Before you leap right in to a conversion to a different toilet... I can tell you the fresh water QF gets back much closer to Q (quiet) if you just replace the motor/pump assembly... assuming yours is old. We replaced our motor when it was about 12 years old, very big improvement.

And the simple motor replacement is cheap and easy. The result in our case was a return to much quieter... like back when we first got the boat... and MUCH better than what I remember the VacuFlush like on our previous boat... where that POP! would wake the dead.

-Chris
 
My, for what's worth free advice is, use it as is until it gives you trouble then, implement your replacement plan or rebuild it.

My N46 had an electric salt water flush with a back up hand operated lever. Rebuilt it maybe 3 times in 10+ years but, always worked. Nothing fancy, just efficient. Remember, when you close the door, everyone will know what you are doing anyway. LOL
 
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What's the skinny with the sink drain line? It looks like they used it for the sink drain, shower drain, and all the bilge outputs too. Is it the type of hose?

Yep...it's corrugated hose. It's ok for bilge pumps, but not for sink drains because the corrugations trap soap scum, body oils and all the other stuff that goes through sink and sump drains, building up in the hose. Sink drains should be smooth walled hoses.

I noticed the vent goes to a likely useless vent filter, and based on the 4 different bottles of holding tank treatment, hoses are permeated and all need to go.

Remove the vent filter...they actually help to create the problem they're sold to solve! But how would tank products tell you the hoses are permeated? They almost certainly are, but tank products only deal with tank contents..odor out the tank vent.

There's a macerator pump hooked up...I'll be in the great lakes for at least the next 5 years...likely more. Do I cap that hose/fitting off completely?

Remove the macerator and all plumbing connected to it. If there's a separate hose fitting on the tank for it, a threaded plug (available from the plumbing department in any hardware or big box store) wrapped in plenty of Teflon tape will plug it.

You and I can discuss tank venting and other sanitation system issues/problems and how to solve 'em and I'll be glad to help you do that...just send me a PM after you actually own the boat.

Meanwhile...Which edition of my book do you have? If it's not the updated "NEW Get Rid of Boat Odors, released in 2016" I strongly recommend you get it (see link in my signature)...it includes a lot more information you definitely need! If it is the current edition, it's time to get it out again.

--Peggie
 
. I can tell you the fresh water QF gets back much closer to Q (quiet) if you just replace the motor/pump assembly... assuming yours is old. We replaced our motor when it was about 12 years old, very big improvement.
-Chris

Thanks for the reply. I figured out the pump was replaced 2 years ago...so it's newer. Mine's not quiet!
 
My, for what's worth free advice is, use it as is until it gives you trouble then, implement your replacement plan or rebuild it.

My N46 had an electric salt water flush with a back up hand operated lever. Rebuilt it maybe 3 times in 10+ years but, always worked. Nothing fancy, just efficient. Remember, when you close the door, everyone will know what you are doing anyway. LOL

Thanks for the advice. Having a 7 and 8 year old and my lovely bride, there is no option for me to wait for it to go bad. I did rebuild my vacuflush on the last boat, and was generally happy with its operation.

For me reliability and ease of use are worth whatever it costs. Also if I can get quieter...keeps the littles asleep when we may be up later and have to use it.

Thanks!
 
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Remove the vent filter...they actually help to create the problem they're sold to solve! But how would tank products tell you the hoses are permeated? They almost certainly are, but tank products only deal with tank contents..odor out the tank vent.
--Peggie

I found 4 different odor control products under the sink, and 2 more in another locker. So I was kind of chuckling knowing they were dealing with odor and thought the chemicals would solve it. I could smell the hoses were bad the first time I stepped on the boat.

Once we pass the putt-putt test, I've got a plan to replace all the hoses, and the drain and deal with the vent issue too. I've got to move the boat from Lake Michigan to Lake Superior...I'd really like to get the hose thing done before then. I spent another few hours on it before I had to head to the airport to go home today...but dang I forgot to measure the step the head is on!

I like the idea of removing the macerator completely. Can't see any reason I'd use it, even if I keep the boat for 20 years. I'm not looking forward to removing that fitting however. My access is limited (have a plan for that too) and I probably need to take advantage of the tank not being used for a few years...maybe less mess?

I may reach out before...I'm pretty confident the sea trial will be ok and will probably want to begin work on this stuff right after I sign off.

Thanks for the help! And I do have the current version of the book.
 
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