Does this part (water fitting) do anything else?

[Em and Tim]

Hi, and thanks for any input in advance.
We have been away for just over 6 months now, so I'm not sure if we are still beginners, but this seems the best place to ask.
We have sprung a leak in this part (a kind of junction box, see photo) on the hot water system (nicely spraying over the charger inverter, and down into the battery compartment, yay). As we were just doing a dive on the edge of nowhere (near Nordkapp, Norway), we had to retrace our steps to Hammerfest and eventually Alta to find parts. We failed to find a direct replacement, and have made do with two 'T's and a bit of hose (see second photo). My question is whether this is a temporary bodge, or if I can consider it a permanent fix. The leaking junction box has a dark strip inside it, along what would be the top, it does not seem magnetic (one theory), so I can't work out its function unless it is just a heat sink to keep the water warmer in the pipe.
Should I hunt round and find this part, it can I consider the fix permanent?

 

[daveandsan]

That should get you out the mire. The manifold you have taken off sometimes have non return valves in them but that is the only difference in my humble opinion.

 

[TheBig1]

as above, you are fine replacing the manifold as you have

 

[Badknee]

? good fix.

 

[The Wino]

Looks better than the original to me

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[sonny]

Jobs a goodun

 

[daveandsan]

Em and Tim just in case you should want to replace it when you get back home there is something similar here.

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[kevenh]

Move on from the pipework issue & enjoy the Arctic circle

 

[Em and Tim]

Moving on from the pipework seems apt, having fixed that, it seems that the alternator has stopped charging the leisure batteries (but is still giving the engine battery 14.2v). As I've been in this compartment where the batteries and wiring are, and they all got a liberal dousing by the peak, i am guessing it is in here, but, I'm not sure what I'm looking for, any suggestions (my guess at the moment is some wires with a 10 amp fuse (but it looks fine).

 

[daveandsan]

Any photos?

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[DaveandJen]

Normally the charge goes to the engine battery first and when fully charged moves onto the leisure battery so it’s worth checking fuses and connections if this does not happen shortly.

 

[Em and Tim]

Thanks again for the input. I have tried a few things and it has thus developed.
I have swapped the 10amp fuse over with one I know was working and the old one works.
Having fiddled with wires, we have had it intermittently working today (symbols on control panel, and 13.8v on both batteries while driving), then no symbols and 12.4v on leisure 13.8v on engine battery.
Due to this, I have concluded its a loose connection, though i have since replaced the connections on the wires that i believe are relevant.
Still no luck.
Here are dome photos, from this morning, and how it's a bit neater.

 

[Em and Tim]

My understanding is this:
the negative terminals,
the busy one has a
8mm black direct feed to the inverter (wrapped in insulation tape)
3mm blue that heads towards the solar input (black tape round connection)
12mm black cable runs to a brass fitting (see photo) that I think is the measure of voltage, then from that as loads of small wires bundled together towards the fuse board).
4mm blue with yellow connectors, links the two batteries
2.5mm Black wire runs to a relay that I believe is the feed from the alternator.
The quiter one has
4mm blue with yellow connectors, links the two batteries
2.5m black that I think runs towards the solar (i think this is the manufacturers wiring for a solar, and i reckon this is now redundant, but i have just changed the fittings regardless).
The positive terminals.
The quiter one
2.5m red to 10amp fuse that I have changed. I now think runs towards the solar (i think this is the manufacturers wiring for a solar, and i reckon this is now redundant, but i have just changed the fittings regardless).
5mm blue that links the two batteries with earth tape round it.
5mm paler blue that runs off towards the fuse board.
The busier one.
2.5mm red wire runs to a relay that I believe is the feed from the alternator
3mm brown that heads towards the solar input (black tape round connection)
5mm blue that links the two batteries with earth tape round it.
8mm white taped black at fitting that runs to an isolator and on to the inverter as a red cable.

Any alternative theories or knowledge would be hugely appreciated.

 

[TheBig1]

the relay is probably charge to leisure battery or fridge from alternator, or even both combined

 

[Em and Tim]

It was unrelated, the fuse panel on the engine battery had come loose!