Jabsco manual toilet inlet water supply, fresh ?

[Sadlerfin]

My hot/cold tap in the toilet basin lifts out with a flexible hose, so that it could be used for showering. If I ever felt the need to flush the loo with fresh water, which I haven't, I would simply use that convenient supply. No need for any plumbing.

I do this everytime I leave the boat pump out the sea water from the bowl and put fresh water so the bowl has fresh water this avoids a smelly Loo on arriving back on Board

 

[Dan Lee]

I saw this at the boat show, has anyone had any experience with it:

https://www.seasmartmarine.co.uk/index.html

Thanks Dan Lee

 

[simonfraser]

rinsing with fresh water helps, but does not eliminate the odor.

have just added a small serving of napisan to the fresh, perfection.

 

[Mistroma]

I do this everytime I leave the boat pump out the sea water from the bowl and put fresh water so the bowl has fresh water this avoids a smelly Loo on arriving back on Board

It has already been mentioned by others but is worth repeating. Pouring fresh water into the bowl only flushes the outlet side with a little recycling through the pump. Odours tend to come in through the inlet side and pouring water into the bowl has no effect on the inlet hose.

Some organic material can be recycled through the pump and back to the bowl when flushing. Adding lots of fresh water to the bowl and pumping it through will have some effect on cleaning the top side of the pump onwards. However, it is not the most efficient method as it relies on leakage inside the pump and also only covers part of the system.

Organic material inside the inlet hose can really only be treated by putting some agent through that pipe (e.g. fresh water, chemicals etc.). That requires additional plumbing unless you like to snorkel while someone else flushes.

I see that someone says Lavac won't have a problem because of the design. That's partially true but you can still get contamination in the sea water. This can be quite bad if the outlet and inlets are close to each other but can also happen when sea water is contaminated. If you use a Lavac underway in clean seawater then build up of smells shouldn't be a problem as pump contamination isn't a factor.

 

[Hydrozoan]

It has already been mentioned by others but is worth repeating. Pouring fresh water into the bowl only flushes the outlet side with a little recycling through the pump. Odours tend to come in through the inlet side and pouring water into the bowl has no effect on the inlet hose.

Some organic material can be recycled through the pump and back to the bowl when flushing. Adding lots of fresh water to the bowl and pumping it through will have some effect on cleaning the top side of the pump onwards. However, it is not the most efficient method as it relies on leakage inside the pump and also only covers part of the system.

Organic material inside the inlet hose can really only be treated by putting some agent through that pipe (e.g. fresh water, chemicals etc.). That requires additional plumbing unless you like to snorkel while someone else flushes.

I see that someone says Lavac won't have a problem because of the design. That's partially true but you can still get contamination in the sea water. This can be quite bad if the outlet and inlets are close to each other but can also happen when sea water is contaminated. If you use a Lavac underway in clean seawater then build up of smells shouldn't be a problem as pump contamination isn't a factor.

Indeed, and I think that the Seasmart system injects a disinfectant right down inside the inlet pipe, adjacent to the seacock. I fitted an in-line reservoir for proprietary disinfectant blocks, which I now use with conventional blue lavatory blocks, but for space reasons it has to sit some way up the inlet pipe, That leaves some seawater in the lower part of the pipe untreated, but it still prevents all but an occasional minor whiff of H2S on first flushing after long standing. RichardS here use a strainer with a urinal block to achieve a similar effect, but as it is somewhat smaller he can I think locate it closer to the seacock.
http://www.ybw.com/forums/showthread.php?432535-Heads-inlet-pipe-smell/page2&highlight=heads+odour

 

[VicS]

It has already been mentioned by others but is worth repeating. Pouring fresh water into the bowl only flushes the outlet side with a little recycling through the pump. Odours tend to come in through the inlet side and pouring water into the bowl has no effect on the inlet hose.

Some organic material can be recycled through the pump and back to the bowl when flushing. Adding lots of fresh water to the bowl and pumping it through will have some effect on cleaning the top side of the pump onwards. However, it is not the most efficient method as it relies on leakage inside the pump and also only covers part of the system.

Organic material inside the inlet hose can really only be treated by putting some agent through that pipe (e.g. fresh water, chemicals etc.). That requires additional plumbing unless you like to snorkel while someone else flushes.

I see that someone says Lavac won't have a problem because of the design. That's partially true but you can still get contamination in the sea water. This can be quite bad if the outlet and inlets are close to each other but can also happen when sea water is contaminated. If you use a Lavac underway in clean seawater then build up of smells shouldn't be a problem as pump contamination isn't a factor.

The pin hole in the inlet pipe of a Lavac also means that it almost completely drains. One half into the bowl from where it is pumped away and the other half down to the water line, leaving only small section with water in it and the remainder full of air. This for a time, at least, prevents the anaerobic conditions, which lead to the bad eggs smell, developing.