Hi, apologies for the delay in posting
the details - but here's the details on how my SM40 is installed on my Lagoon
400 S2. I plan to fully document this once I find the time to do so.
Before I go into the details, a couple of important points:
- The blue braided high pressure hose that comes with the water maker is 3ft long and isn't long enough if you install in the same location as me. You need to ask CruiseRO to ship you a 5ft hose (the other braided high pressure hose that connects the high pressure pump to the membrane is fine).
- My lagoon
has metric pipework, so interfacing to the existing pipework required some adapters to go to the imperial connectors as supplied by CruiseRO. I'll dig out the details and fully document.
- I had a few issues when I commissioned the system:
1. Some of the pipework leaked where it connected to the push fittings. I had to remove the push fitting and re-cut the pipe as it had some scoring on the end of it which was causing a leak.
2. The o-ring in one of the push fittings had dislodged itself. Something to check for if you have a leak.
3. The flow meter on the main panel wasn't correctly tightened onto its fittings. Had to remove it from the panel and tighten the fittings and re-fit into the panel. Not a difficult job, but was a bit concerning when I first noticed the leak.
4. No matter how much I tightened the housing for the carbon block filter it still leaked around the threads. Had to put PTFE tape around the threads in the end.
The water maker is installed in the port side forward cabin
The control panel
is located on the starboard bulk head
as you walk into the cabin
. When the cabin door is open it covers the panel. There is a handy access panel already cut by Lagoon underneath where the control panel
is mounted. This enabled me to get to the rear of the panel when installing the water maker. Fortunately Lagoon have also cut various holes which enable the pipework to run to the membranes and boost pump etc.
I purchased the automatic fresh water flushing
unit to and you can see the control box
for this mounted behind this panel too, along with the through hull
I put in for the brine discharge:
The carbon filter, pre-filters, boost pump and solenoid valve for the auto fresh water flush are installed underneath the floor in the cabin as shown below. Any leak here runs straight into the bilge
The high pressure pump and membranes are installed underneath the bed
in this cabin.
To mount the membranes, I first bonded two pieces of ply against the hull
and then use coach bolts to mount the provided membrane brackets to the plywood
. I then attached the membranes to the brackets - a two person job!
I ran the 12V DC wiring
from the panel back along the rear of the seating in the saloon
by pushing it with a wooden dowel.
Outside the heads in port hull is a cabinet (above the escape hatch) which contained breakers and an AC feed for the air conditioning
units. I installed the breakers for the high pressure pump and could take an AC 240V feed from the input to the air conditioning
I'll continue this in another post as I've reached the limit on photo
uploads for this post.