All up and running, works well.
I used the leo litchfield plans as a base.
I bought 2 x 2.5 X 40 filmtec membranes and cylinders set up is series,
I used a 6.5 hp honda
pressure washer with brass pump. Fed by a shurflo diaphram pump
I couldn't get a CAT pressure regulator
so ended up using a brass gate valve. A water
pressure gauge, filters etc .
Cost me under $2,000.
Puts out about 150 liters an hour.
I must admit it was amazing seeing salt water
going in one end and tasting fresh water
coming out the other end.