As I could not get spare parts
for my old pressure vessels, I bought 2 new high pressure tubes from Applied Membranes and new membranes from Water
Anywhere. I also needed new high pressure fittings for connecting the new pressure vessels to the Clark pump. These I could get in Denmark
. This Summer I remounted it and discovered that at least one of the feeder pumps did not work so well. Then I bought a new one.
Every time I have to get the needed hard ware from the US, the boat is in the Med and I am in Denmark
, so it takes a while to get everything collected and brought to Greece
when I am going there.
This summer I put everything together. When I started the flushing
process with open pressure valve and using non-chloride freshwater it started filling the pre-filters but then water
started pouring out of the product outlet from the membranes. Nothing went into the brine bucket as I expected. To my understanding I should not be able to push water through the membranes with the pressure from the feeder pumps.
I wonder if others on this valuable Cruisers Forum have a similar experience.
I am now back home in Denmark but want to be prepared next time I going down to the boat.
My own suggestions are
1. The o-rings between the membrane and the housing of the pressure vessel are not tight. Or there is another leak inside the housing that allows water from the inner high pressure side to get out to the low pressure side
2. One of the membranes is faulty
3. For some reason, the Clark pump does not move to the point where it allows the water from the pressure pumps to go through it to the brine outlet. I have opened the Clark pump and I can push the main pistons and it looks fine as far as I can see it.
I hope that someone can help me solving this so that we can regain independence of going to harbour just to get water.