we got a bunch of work done at just cats in fort lauderdale (everything they touched broke, don’t do it) including getting the AC units salt water circuit flushed on the stbd side (it’s used more).
anyway either because or coincidentally the distribution. manifold on the pump side developed several pin holes. the service guy did not notice these (and did not tighten a clamp) even though they sprayed salt water up
into the room if you removed the access cover in the floor. Titan marine indicated that the manifolds are the wrong material and built us a plastic one. worth checking. see photos of hole in middle outlet and another on the spline fitting
Just trying to get my head around the labels on the valves - looks like Fwd, Saloon & Aft. How does this relate to the aircon units which on our boat are Port, Saloon & Starboard?
A plastic manifold would make a lot of sense - thanks for that thought. I may get the spares to do the conversion sometime.
Here I am a year on from thinking it would be good to do this as preventative maintenance and mine have rotted through too! I never did get that round tuit for this job…
Heavy corrosion in other places as well as the hole. I’ll be changing all three of the hose barbs for plastic versions. And I will probably try to find a suitably corrosion resistant manifold on my next visit to the 1st world.
A quick follow up in case it helps others in the future… I couldn’t find a replacement in French Polynesia so I “repaired” with a good coat if JB Weld (strong epoxy) and its going strong six months later.
I will replace the whole unit in NZ when I get there.
Thanks for bringing up this issue.
I have just looked at our manifold which is located on the port side bilge area. We have only two connections branching off the A/C pump manifold. Probably because we do only have two A/C units on board, one for each hull side (owners cabin and two cabins on the starboard side.
I have seen some oxidation on the manifold material and will check if there is a leak.
Bahati, I have the same setup and had some oxidation as well. I rebuilt ours and now make sure to change out the sacrificial zinc on the end of the manifold once every 5-6 months since salt water sits inside regardless of running the AC or not. Have not had any issues since.
Why not fit an EasyAnode? It will indicate when the sacrificial anode needs to be replaced. No guessing anymore as the anode’s window will indicate when it is depleted.
