I'm off to the show and will be looking at quiet toilets (why else would you go 100 miles to a boat show?) I know Jabsco but who else make quiet toilets. Also some recommendations would be appreaciated.
I'll second rickp's recommendation for Tecma. We've got Tecma fresh water vacuum flush toilets on our boat and they've been very efficient and also never blocked
well, unless they've radically changed their products, the Jabsco 'quiet flush' is only quiet compared to someone banging on your hull with a big stick, or operating a vacuum cleaner. Works well, but noisy. I 'spect if the bowl didn't empty faster than it fills, it'd be a lot less intrusive.
The quietest marine loo is probably the humble bucket - the only noise it makes is the splash (small or big, depending on if the bucket goes too...) when you 'bucket and chuckit' (over the side) in the time honoured fashion..... /forums/images/graemlins/laugh.gif
The Dometic units we have fitted to our Princess 42 are really good. Much quieter than the Jabasco units and they feature a lovely single touch operation. I was really impressed with them
Wanted the Tecma but wouldn't fit the space so bought a Vetus, quiet one touch operation. Just be aware that if you want it to flush with sea water you'll need a separate pump. Same applies to freshwater unless your system operates at above something like 20psi. Best to check first.
Yup, Tecma are the biz. They are not vacuum as Deleted User said, they have an integrated macerator pump inside the unit, and at the end of the flush cycle they make a momentary swoosh noise which sounds a bit vacuum ish, but it isn't. They are VERY quiet
I wouldn't believe anything Jabsco say about quietness. They seem not to understnad the meaning of the word. I think their toilets are complete junk and would never fit them
Dometic vacuflush are nice,and very quiet so long as you can put the vacuum unit under the floor and insulate its noise that way. If not, the vacuum diaphragm pump is a bit noisy (clunky, cos it has a crankshaft to operate the diaphragm up and down). They are quite a big job to retrofit, as you need much space for the vacuum unit
So yeah, Tecma is likely the best (as fitted to many superyachts by the way, Mangustas, the big sunseekers, etc)
I think the tecma silence is about £450, avail from www.aquafax.co.uk. also widely avialable in the Med
[ QUOTE ]
Yup, Tecma are the biz. They are not vacuum as Deleted User said, they have an integrated macerator pump inside the unit, and at the end of the flush cycle they make a momentary swoosh noise which sounds a bit vacuum ish, but it isn't. They are VERY quiet
[/ QUOTE ]Precisely. I fitted two of them 5 years ago, they never missed a beat since then.
Additional 2c:
First of all, don't go for the apparently simpler automatic version. That doesn't allow you to leave some clean water in the bowl for some time (which makes for better cleaning), whilst with the semi-automatic version you have full control. Just a matter of pressing the button twice instead of once.*
Secondly, they don't waste a lot of water, so can be connected to the tanks (possibly fitting a T-valve anyway, just in case you're running out of water).
Finally, the integrated pump which jfm mentions is also supplied as such, and it works just perfectly also when fitted to the waste water tank.
*) PS: if guests can't manage that, they'd better not be boating anyway... /forums/images/graemlins/grin.gif
jfm, I bow to your greater knowledge of sanitary ware and sewage but the pump does'nt half suck so I guess the seals are good enough to create a vacuum
Well I suppose all pumps are a bit partial vacuumish in that they suck. But Tecma isn't really a vacuum system. The tecma bowl fills with water (when you press the "before" button) and you then have a pool of water whose top part is in the toilet bowl and whose bottom portion is immersing a built in macerator pump. When you press "after" the macerator simply sucks out the flush water and macerates the waste and pumps/pushes it to the black tank/discharge. And more flushwater is introduced to the bowl as this happens.
In a true vac system like dometic vacuflush, you have a 10litre or so tank permanently kept at the ready, at quite high vacuum. This tank is connected to the toilet bowl by a couple of metres of 38mm white waste pipe. The whole of the 38mm waste pipe, and the tank itself, are held in a vacuum state when the system is in stnadby mode. Then when you flush the loo by opening the valve at the bottom of toilet bowl, the waste gets "instantly" sucked along the 28mm waste pipe and into this 10 litre vacuum tank, and of course the vacuum has then dissipated/gone. Next, the diaphragm pump (situated just downstream of the 10litre vac tank) cuts in (sensing the loss of vacuum) and does 2 things: it pumps the waste from the 10 litre tank to the discharge/holding tank, and at the same time, on its suction side, it re-creates the vacuum state in the 10 litre tank and the 38mm waste pipe, ready for the next go
How do I know this? Errr, becuase i once had to take one apart, erk! It's quite nicely engineered stuff actually, though it consumes space (admittedly only bilge space) and isn't cheap. Much as I like it i think I'd keep it simple and spec Tecma on a new boat, and carry a whole Tecma pump as a spare part.
Am designing a left-field boat for my family and will have the tecma as my #2, after the most efficient normal bogs (am employing a very strict KISS principle).
Thanks, jfm. Luckily, I have not yet had to do any maintenance at all on my Tecma toilets (hence my admiration) unlike the toilets on most of my other boats, the inner workings of which I necessarily had to become very intimate with
What's the second flush on the Tecma for? Mine definitely do a second dry whoosh a few seconds after the first flush
They're almost empty, but not completely.
During the first flush, water is poured inside, and the flow stops as soon as the first flush finishes.
Since the pump is very powerful, it leaves nothing but the last drops of water inside the bowl.
The second flush takes care of those last drops.
That's how mine work, anyway.
Edit: I remember that the person who installed them on my boat adjusted some settings (for how long the water is let in 'before', for how long it's flushed, and the length of the interval between the 1st and the 2nd flush).
Probably, depending on those regulations, the behaviour can be slightly different.