Fairline Corniche 31 waste deposit valve

[Izy]

Hi everyone, maybe you could help me. I proudly own an 1985 Fairline Corniche 31, that is running very well and well mantained. Is the master bedroom front model. In the manual, there is a mention about an Y valve that its purpose is to enable discharge of Waste waters into the sea.
I have been looking for hours in my boat in locating it, but haven't found it as yet.
If someone could help me with a specific description, picture or a schema, of where to find that valve , it would be very great, TIA, cheers !
Izy

 

[Tranona]

Quite simple. IF your boat has a holding tank for waste from the toilet then there will be Y valves to give you the option of sending the toilet waste either direct overboard or to a holding tank. A Y valve looks like this google.com/search?q=y+valve+boat&oq=Y+Valve&aqs=chrome.2.0i512l6j69i60l2.7900j0j7&sourceid=chrome&ie=UTF-8

In reality it is highly unlikely that your boat actually has a holding tank - very unusual in 1985. Pretty obvious if you have one as the tank and plumbing are difficult to miss!

 

[Izy]

Quite simple. IF your boat has a holding tank for waste from the toilet then there will be Y valves to give you the option of sending the toilet waste either direct overboard or to a holding tank. A Y valve looks like this google.com/search?q=y+valve+boat&oq=Y+Valve&aqs=chrome.2.0i512l6j69i60l2.7900j0j7&sourceid=chrome&ie=UTF-8

In reality it is highly unlikely that your boat actually has a holding tank - very unusual in 1985. Pretty obvious if you have one as the tank and plumbing are difficult to miss!

thanks for your reply, my boat a holding tank, and it is full, so it keep on reloating in the toilet... my port don't have a suction area, so I am thinkng of buying a manual drill--sucking pomp.. but will try to look again at what you mention

 

[Izy]

thanks for your reply, my boat a holding tank, and it is full, so it keep on reloating in the toilet... my port don't have a suction area, so I am thinkng of buying a manual drill--sucking pomp.. but will try to look again at what you mention

forgot to mention, the issue is that I can't access the waste tank, since it is underneath the saloon floor, will try to look at the toilet connections, last time I looked, wasn't lucky either...

 

[CliveF]

In your instructions it states " in some boats a Y valve is fitted"
That to me is English instruction speak for "very rarely are Y valves fitted".
Therefore I think the boat owners who can help you are few and far between.
The system is primarily designed for emptying via the deck mounted waste port.
Which you can not make use of as your home port does not have those facilities.
You therefore have 3 options.
1) visit a port that does have these facilities
2) get up close and personal with all points of the tank to trace where the pipes go from and to thereby potentially finding your valve and exit point to sea. Note if it is that hard to find it is probably seized and if you are to vigorous and break it you could literally be up to your neck in shit or sea water neither of which is going to be good.
3) resort to you DIY option , which is never going to be pleasant and as you imply the tank is very full there could be a major leakage problem when you first put your hole in it before you even start pumping.

Personally before trying 2 or 3 i would absolutely do 1 so that I would be working on an empty system. It will still smell awful when you break into it but at least you would not have fermenting human waste all over you and the boat.

I am sure that it not really what you want to hear but is a least a fair assessment of the situation your are in.
I hope you get sorted satisfactorily.

Regards Clive

 

[Izy]

In your instructions it states " in some boats a Y valve is fitted"
That to me is English instruction speak for "very rarely are Y valves fitted".
Therefore I think the boat owners who can help you are few and far between.
The system is primarily designed for emptying via the deck mounted waste port.
Which you can not make use of as your home port does not have those facilities.
You therefore have 3 options.
1) visit a port that does have these facilities
2) get up close and personal with all points of the tank to trace where the pipes go from and to thereby potentially finding your valve and exit point to sea. Note if it is that hard to find it is probably seized and if you are to vigorous and break it you could literally be up to your neck in shit or sea water neither of which is going to be good.
3) resort to you DIY option , which is never going to be pleasant and as you imply the tank is very full there could be a major leakage problem when you first put your hole in it before you even start pumping.

Personally before trying 2 or 3 i would absolutely do 1 so that I would be working on an empty system. It will still smell awful when you break into it but at least you would not have fermenting human waste all over you and the boat.

I am sure that it not really what you want to hear but is a least a fair assessment of the situation your are in.
I hope you get sorted satisfactorily.

Regards Clive

you are very right. I have been looking for option 1, and seems that some 15 NM of my port, there is one that has the suction engine. I wanted however make sure mine do not have that option, you know for the sport of knowing my boat. thanks!