HELP!!! Heads sink plumbing ideas?

[xeitosaphil]

We have a similar arrangement on our Hurley 30, I have arranged the sink waste to drain from flexi hose waste pipe through the bulkhead down into seacock under saloon berth. Pumped cold water is fed to Whale foldaway tap, which is erected on use but folded for sliding sink. Water inlet for the toilet is also in bilge under saloon berth ( bit of a pain really ) but stuck with it.

Only a problem when company in Saloon, and you need to turn the seacock’s.

Definitely the way to go IMO if possible.

 

[prv]

All these people T-ing into the flush side of the toilet should be aware that on a Jabsco it's only one worn O-ring away from the poo-pumping side. Maybe a risk jokingly accepted on a blokey old booze-cruiser, but is SWMBO likely to be happy once she learns this? I've been on cheap old charter boats before that were definitely mixing the two streams to some extent. Leave the toilet alone and keep your sink independent.

Or use Green Alien's idea of a simple pipe into the bowl, but I suspect this may not be much better to female eyes than the present arrangement. I know it seems like a bodge to me.

The reason I suggested a tip-up sink instead of a sliding one is that I'm not convinced there will be space underneath a slider for the drain hose to shift in and out. Don't underestimate the space needed for plumbing, and moving plumbing can only require more.

Pete

 

[prv]

I have arranged the sink waste to drain from flexi hose waste pipe through the bulkhead down into seacock under saloon berth.

It certainly looks very neat, but I'm afraid that thin B&Q flexi pipe connected to a seacock below the waterline gives me the willies. Especially since those pipes aren't designed for repeated movement (though they may handle it fine, I don't know). Is the joint mounted on the bulkhead above water, so that at least the flexi isn't keeping the sea out of the boat when moored?

Pete

 

[sailorman]

My system works faultlessly, saves a seacock & skin fitting & i would never ever have a wooden boat

So? They are not dangerous in themselves and I don't understand why people have this strange aversion to holes in the hull. Just make sure you've got properly fitted skin fittings and sea-cocks. All boats have holes in their hulls for all sorts of reasons...

No-one seems bothered by the miles of seams in a traditional carvel boat that are filled with twisted cotton and putty...

 

[xeitosaphil]

It certainly looks very neat, but I'm afraid that thin B&Q flexi pipe connected to a seacock below the waterline gives me the willies. Especially since those pipes aren't designed for repeated movement (though they may handle it fine, I don't know). Is the joint mounted on the bulkhead above water, so that at least the flexi isn't keeping the sea out of the boat when moored?

Pete

Yes Pete the joint is above waterline, and the flexi which is the concertina type so goes back and forth with the movement of the sink in and out. Can't remember the exact one, but this type

http://www.plumb-electric.co.uk/was...exible-waste-pipe-universal-ends-p-14178.html

The flexi is joined at the bulkhead by a inline compression PVC joiner with PVC sleeve then goes to proper re-enforced waste hose double clipped to the seacock. I also don’t see the flexi to seacock as a good joint
I have thought that this will be a renewable pipe solution eventually, but worst case scenario would be a little water leak from a basin at discharge, should the pipe split through continued use.
My seacocks are always shut after use anyway.

 

[KevO]

Wow... Lots to think about now...

 

[LadyInBed]

The simple sink pipe into the loo trapped by the toilet lid is practical. I like the idea of using a diverter valve.
When I suggested a non return valve, I was thinking more of a simple mushroom valve as in air foot pumps rather than the spring assisted ones.

 

[JSYmartini]

I recently made an small (10l ish) aluminium tank which fits under my sink. The sink drain and the shower pump out are both plumbed into the top of the tank. The sink overflow is also connected to the top of the tank to act as a vent for the tank as well as catching any overflow from the sink. Another hose just down from the top of the tank goes to the above waterline skin fitting which is normally closed. Finally the toilet inlet is connected to the bottom of my tank.

So waste from the shower and sink keep my tank topped up to supply fresh water for the toilet (no seawater odours), the sink acts as a break to prevent contamination of the fresh water and as a bonus, one less hole in the bottom of my boat.