Sealine S43 electric toilet flush water

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ultrarep

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Ok last question. Was looking all round the new S43 prior to collecting it next week and could not figure out where the two electric heads get their flush water from.

Had a tecma electric on current boat that was sea water flushed via a sea cock and made that fresh water flush.

But on the S43 I cant find a seacock that feeds the toilets. The holding tank has the usual macerator and seacock outlet and the aircon has its own sea cock but for life of me I cant figure out the loos. Are they fresh water flushed on this boat can an S41/2/3 owner advise on this?

Many thanks
 
I think that very early S41's (1999-) had seawater flush but every boat that I've seen from about 2001 has had fresh water flush. The S43 was launched a little while after the launch of the S41, so it's probable that they were all fresh water flush. Where seawater intakes were fitted, they were located under the forward saloon floor (where the mascerator pump and outlet seacock live) and under the forward floor hatch in the mid-cabin.

The fresh water tank on the S43 is slightly smaller than those on the S41 or S42 as it is placed further forward (the original water tank being replaced with the third fuel tank). Nevertheless, you should have plenty of fresh water supply to run the toilets as the holding tank will fill up quicker than you are ever likely to empty the fresh water tank! As mentioned above, fresh water flush is preferable as it avoids the rotten egg smell that can develop in raw water flush systems.
 
Hi , this just the problem we’re mulling over . We have just taken delivery of a S41 2000 . Does the fresh water transfer straight to the toilet to flush or do we need to transfer it by some way ? We would like to avoid using river water to stop the eggy smell . Thank you for any advice
 
Hi there

welcome along.

Trace the pipe backwards from the flush pump and see what you find. Three possible options:

1. You find a seacock and no changeover valve. Yours is sea water only, bad luck. But easy to adapt, I added freshwater flush to my yacht when I got it upgraded to leccy WCs
2. You find a supply plumbed into the fresh water with no changeover. Unlikely given what you say about eggy smells.
3. Yours has a changeover valve in the supply to the pump, either fitted new or a retrofit, and on the two upstream sides of that, a seacock for seawater, and a pipe to your fresh tank. Happy days. This is what you'll end up with if you convert a seawater only system.

If you do the conversion, take some advice about valve choice / anti siphon / non-return arrangements to ensure you can't pollute the fresh tank from the seawater supply side, and you don't flood the bathroom with fresh water when filling the water tanks. Don't ask how I know this...
 
Scala said:
Hi there

welcome along.

Trace the pipe backwards from the flush pump and see what you find. Three possible options:

1. You find a seacock and no changeover valve. Yours is sea water only, bad luck. But easy to adapt, I added freshwater flush to my yacht when I got it upgraded to leccy WCs
2. You find a supply plumbed into the fresh water with no changeover. Unlikely given what you say about eggy smells.
3. Yours has a changeover valve in the supply to the pump, either fitted new or a retrofit, and on the two upstream sides of that, a seacock for seawater, and a pipe to your fresh tank. Happy days. This is what you'll end up with if you convert a seawater only system.

If you do the conversion, take some advice about valve choice / anti siphon / non-return arrangements to ensure you can't pollute the fresh tank from the seawater supply side, and you don't flood the bathroom with fresh water when filling the water tanks. Don't ask how I know this...
Click to expand...
Thank you for your reply , sorry to be so late , I’ve only just see you answer . Much appreciated .
 
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