Simonpk
Well-Known Member
Re: The plant pot
Same here ??
Same here ??
Hi Vas, I am sure i posted to your Q`s not long after you posted but they are not here now. Knowing me I posted in the wrong thread.
Anyway to answer
The two black boxes are fresh water tanks which are now as of this weekend linked together by a balance pipe.
As you say I have fitted them in that position to keep the weight low down and forward also I like symmetry
I still have to draw up a sketch of the fit out. In the storage cupboard will be the Propex HS2000E at the bottom below the Morco F-11EL. I like to keep all gas lines the as short as possible.
The Galley will be opposite the Heads to counter balance, The berths will be in the bow as the usual V berth. I am still deciding on making a bunk to go down the port side in case the grand kids decide to come.
I will see if i can manage a sketch on the laptop
Next update
This weekend i have done a bit of plumbing and lined out the Heads but for the water tank side. The floor will be laminated over for the wet room and drained by a pump under the read deck. This pump will also drain the water system as when needed in winter etc
The water pump is now under the cabin step where the batteries were intended to go. Now the two batteries will be going the other side of the lower bulkhead under the deck.
Here you can see the top horizontal pipe is the balance pipe joining the two tanks. This is to help filling the tanks from one deck filler.
![]()
The cabin step covers it just nicely.
![]()
Here is the feed to the heads sink and Morco boiler which I will be T`ing off to. The elbow fitting on the right will be replaced with a T fitting later. so i can go through the heads wall and up to the boiler.
All open ends in the pipe work have been blocked off with tissue for now so no dust or dirt gets in the system.
![]()
Spot the difference.
I forgot to add the drain for the water system. Easy done as I have yet to finish it all off yet. All joints will be tightened and tested before anything else goes ahead. Well but for the pie work to the galley sink.
![]()
I hope to get on with a little more lining out done so I can get the galley framed out this week. Once that is done i can move back over the cupboard and then the berths.
Hi Vas, I am sure i posted to your Q`s not long after you posted but they are not here now. Knowing me I posted in the wrong thread.
Anyway to answer
The two black boxes are fresh water tanks which are now as of this weekend linked together by a balance pipe.
As you say I have fitted them in that position to keep the weight low down and forward also I like symmetry
I still have to draw up a sketch of the fit out. In the storage cupboard will be the Propex HS2000E at the bottom below the Morco F-11EL. I like to keep all gas lines the as short as possible.
The Galley will be opposite the Heads to counter balance, The berths will be in the bow as the usual V berth. I am still deciding on making a bunk to go down the port side in case the grand kids decide to come.
I will see if i can manage a sketch on the laptop
Next update
This weekend i have done a bit of plumbing and lined out the Heads but for the water tank side. The floor will be laminated over for the wet room and drained by a pump under the read deck. This pump will also drain the water system as when needed in winter etc
The water pump is now under the cabin step where the batteries were intended to go. Now the two batteries will be going the other side of the lower bulkhead under the deck.
Here you can see the top horizontal pipe is the balance pipe joining the two tanks. This is to help filling the tanks from one deck filler.
![]()
The cabin step covers it just nicely.
![]()
Here is the feed to the heads sink and Morco boiler which I will be T`ing off to. The elbow fitting on the right will be replaced with a T fitting later. so i can go through the heads wall and up to the boiler.
All open ends in the pipe work have been blocked off with tissue for now so no dust or dirt gets in the system.
![]()
Spot the difference.
I forgot to add the drain for the water system. Easy done as I have yet to finish it all off yet. All joints will be tightened and tested before anything else goes ahead. Well but for the pie work to the galley sink.
![]()
I hope to get on with a little more lining out done so I can get the galley framed out this week. Once that is done i can move back over the cupboard and then the berths.
Wayne I'm a bit worried about the plumbing. sorry if I'm misunderstanding but the bottom horizontal pipe, that the pump is tee'd off, should function as the balance pipe. You don't want a balance pipe at the top of the tanks because it wont work till one tank is full and it will have too little head so will be slower than your hose pipe.
If you just put an isolator valve either side of the Tee that goes to the pump, you can select to draw from either tank or you can leave both valves open to get a balance pipe effect.
Separate point: you don't want a straight pipe joining two tanks. It needs a flexi section or an S bend. As the boat hull flexes in waves or over road bumps when on trailer, a straight pipe will be pulled and pushed 2mm along its length and the joints will fail.
Dinghy mould looks nice. I agree about 3 x 650gram, and some reinforcing here and there

What is the point of two tanks? If it's balance then just balance one big tank with the fuel and grey/black tank and fine tune with the flaps while underway. The reason I say is because I've just had a mini disaster with the plumbing on my boat so my new theory is keep all these systems simple.
A pipe, connected to the hot water tank, separated causing 300 liters to spill into the bilge. In itself not a problem, however we were away from the boat for three weeks. The water pump sensor must have had enough water to keep the pump on even though there wasn't enough water for the pump to pump. So the pump was running 24/7 for up to three weeks dry. Now the pump still works (a testament to the pump makers) but my argument is that the pump must be at the end of its service life and if Benneteau don't replace it now then I'll end up replacing it as soon as the guarantee runs out. Now the pump is not a major ticket item and I think access is good so it's a relatively inexpensive fix that I could swallow. The problem is the hot water tank, does it still work? Was it running constantly without water? Does it switch itself off? All unknowns. What I am sure of is that the hot water tank is a big expensive job. The Benneteau man is expected tomorrow so I might find out soon if I'm covered.Hi Bouba
The point of two tanks is for more water. Better to have it than not .
There is no where for one big tank to go and I wanted more FW capacity for less fill ups, This is the only place as far forward as I could get . There is no grey tank and flaps.....there is none.
What was your disaster?
I have made all the plumbing sit against the bulkhead in thought of if there is a leak it will run down straight into the bilge.
A pipe, connected to the hot water tank, separated causing 300 liters to spill into the bilge. In itself not a problem, however we were away from the boat for three weeks. The water pump sensor must have had enough water to keep the pump on even though there wasn't enough water for the pump to pump. So the pump was running 24/7 for up to three weeks dry. Now the pump still works (a testament to the pump makers) but my argument is that the pump must be at the end of its service life and if Benneteau don't replace it now then I'll end up replacing it as soon as the guarantee runs out. Now the pump is not a major ticket item and I think access is good so it's a relatively inexpensive fix that I could swallow. The problem is the hot water tank, does it still work? Was it running constantly without water? Does it switch itself off? All unknowns. What I am sure of is that the hot water tank is a big expensive job. The Benneteau man is expected tomorrow so I might find out soon if I'm covered.
Your build is coming on great, keep up the good work, the water beckons:encouragement:
OK, now I understand: you've got the bottom pipe as the balance pipe for the water, and the top pipe is to vent air with 2 tanks sharing a single vent. This is unconventional but it works. I don't think 15mm for the bottom balance pipe will provide as much flow as the hosepipe filling the left hand tank, so getting the second tank to fill will be a bit annoyingly slow, but I'm guessing there (I have two tanks with 38mm balance pipe at the bottom!)This was the first idea of having a vertical vent pipe but I dont think it will need it.
I think I know what you mean about the tanks not filling the same speed.
View attachment 62500
edit to add maybe the joining pipes would be better in 22mm instead of 15mm.
OK, now I understand: you've got the bottom pipe as the balance pipe for the water, and the top pipe is to vent air with 2 tanks sharing a single vent. This is unconventional but it works. I don't think 15mm for the bottom balance pipe will provide as much flow as the hosepipe filling the left hand tank, so getting the second tank to fill will be a bit annoyingly slow, but I'm guessing there (I have two tanks with 38mm balance pipe at the bottom!)
More generally, nice work! It will be a very cosy boat with all that insulation! Hope all is well with the engine
I am an unconventional chap![]()
A normal person would not of even taken the boat on![]()
Any updates on progress?![]()
snipped
You will see here i have added a vertical clear tube to see the tank levels.
![]()
Still a few bits to do as said the hot water pipe needs finishing and a cap/tap/breather for the water level pipe.
Nice job, but may I suggest that you consider putting in an isolating valve on the tee feeding the 'tank sight glass'.
The sight glass is a great way of establishing tank level but it also brings with it a risk of inadvertently emptying your tank.