Prestige 36 - Sea Cock Toilet Settings

[hpwhite]

Hi, I have a Prestige 36 and I am not sure firstly which sea cock(s) for the toilet need to be open and which way the grey lever needs to be set for 'Sea Discharge' and not into the holding tank? Can anyone explain the operating procedures of the toilet inlet / outlets and maccerator settings, thank you, Howard.

[Zanshin]

There will most likely be 2 sea-cocks in the head - one for the sink and another for the head. Some people like them closed when sailing, I plug up the stopped in the sink so nothing can splash in and keep the head sea-cock open as well but lock the head pump assembly to prevent an accident.

The Y-Valve lever will point in the direction that the black-water will flow.

[napoleon]

Hi,
There will be either two or three seacocks under the heads washbasin.
If two then both need to be open when the toilet is in use as the larger one is the outlet and the other smaller one is the water inlet.

If you have three then the middle one is the macerator discharge valve which should only be opened when the pump is running.
Keep closed at other times as it is possible for the holding tank to syphon water in as it is below sea level. The boat will not flood but you might notice foul smells from the vent pipe which exits on the starboard side forward of the windscreen and just under foredeck level.

The grey handle has two positions: which switch between sea discharge and holding tank.
Look at the front of the black plastic body of the valve on which the grey handle is mounted and you will find two silver arrows.
One of these will be covered up when the handle is in full clockwise position and one when in the anticlockwise position.
Whichever arrow you can see is the direction of flow from the toilet.
It is very easy to see which pipe goes from which arrow. The short pipe goes to the discharge and the long one to the holding tank.

Regards

Napoleon

[hpwhite]

Thank you very much for the information, it is a massive help. Yes, it does have three sea cock valves, to which I have now closed off the middle one, other than when operating the maccerator. Regards, Howard

[benmoore]

Oct 13, 2013 14:05:25 GMT napoleon said:

Hi,
There will be either two or three seacocks under the heads washbasin.
If two then both need to be open when the toilet is in use as the larger one is the outlet and the other smaller one is the water inlet.

If you have three then the middle one is the macerator discharge valve which should only be opened when the pump is running.
Keep closed at other times as it is possible for the holding tank to syphon water in as it is below sea level. The boat will not flood but you might notice foul smells from the vent pipe which exits on the starboard side forward of the windscreen and just under foredeck level.

The grey handle has two positions: which switch between sea discharge and holding tank.
Look at the front of the black plastic body of the valve on which the grey handle is mounted and you will find two silver arrows.
One of these will be covered up when the handle is in full clockwise position and one when in the anticlockwise position.
Whichever arrow you can see is the direction of flow from the toilet.
It is very easy to see which pipe goes from which arrow. The short pipe goes to the discharge and the long one to the holding tank.

Regards

Napoleon

Just restarting this thread ... does the outlet seacock need to be open even if it’s directing to the holding tank and not overboard?

On my P36 with new jabsco electric toilet just fitted, the bowl contents won’t empty unless the outlet seacock is open regardless of the flow direction, very odd.

Thx

[betto]

Io sul mio 36 non ho il serbatoio acque nere, vorrei sapere il vostro da quanti litri è e dove è stato collocato.
Grazie