|
Post by Zanshin on Dec 27, 2008 13:11:41 GMT
Both my old and new Jeanneau boats have had 3 water tanks. On the old boat I always had two tanks turned off and one active, once that tank ran dry I would turn that off and switch the next one on. I have now seen a couple of Jeanneaus, including the new one, where all 3 tanks are set to "on". I couldn't find anything in the manual regarding the preferred setting and thought I'd ask here if anyone has anything to add on the subject. I feel that it is nicer to have a separate tank in case water gets bad in another tank, but dislike running my water pressure pump dry when a tank empties...
|
|
|
Post by MalcolmP on Dec 27, 2008 18:15:19 GMT
We had 2 tanks on the 34.2 and now also 2 tanks on the 39i
On the 34.2 the tank gauge only worked on the aft tank so we tended to use the forward tank first and guess that is more sensible in trim terms as well for most cruising purposes
On the 39i we have gauges for both and the manifold would also allow a third tank to be plumbed in, but with 355l in total we seem to have loads for even a few days with only 2 aboard
I would always keep one switched off though, at least you know when you need to start looking for a convenient hose pipe
The pump does hunt when it runs dry, but as run dry pump should not make too much difference IMHO
Worth making sure the califorier is full of water though as it may impact on the 240v immersion heater if the tank is low
Malcolm
|
|
|
Post by Zanshin on Dec 28, 2008 23:55:49 GMT
Ahh, I had forgotten the hot water system when the water runs dry. I will need to trace the plumbing on the watermaker on the new boat to find out which tank gets filled and what happens when it runs full but will stick to time honoured advice and keep only the active tank switched on.
|
|
SteveT
Full Member
Posts: 34
Jeanneau Model: SO 50DS
|
Post by SteveT on Dec 30, 2008 11:33:29 GMT
We have 2 tanks on our 39DS. During handover we were advised by the dealer to have only one tank on at any point in time as they are at different levels and one tank would empty before the other, effectively running dry in any case.
We tend to use the forward tank first to take weight out of the bow and then switch to the aft tank when the forward tank approaches reserve on the guage.
|
|
|
Post by Trevor on Jan 1, 2009 8:02:27 GMT
We have two tanks on our 36i. We use the first tank first and rarely get to the second tank. If it runs out, the pump does run when trying to build pressure but the sound of the pump is fairly obvious so we know the water on that tank has run out.
The hot water tank is on the high pressure side of the pump and fairly low in the boat so IMHO the water tank will remain full of water even if the feeder tanks run dry.
We like to have only one tank on at a time so we know when we have got to the point of using half of our water.
Happy sailing.
Trevor
|
|
|
Post by Don Reaves on Jan 1, 2009 13:57:18 GMT
Based on my experience winterizing the water system in my SO35, I would have to agree with Trevor. The hot water tank will have water in it even if you run the tanks dry.
We also have two tanks. But we alternate them. When a tank is finished, we switch to the other and then refill soon thereafter. This ensures that the water we have on board hasn't been there too long.
Don
|
|