What is the correct method of plumbing water
to the PPS seal? I am assuming it is a water
connection as the ever intelligent local boat
folk tell it is rather than say a vent line.
It has been too many years since I last had to plumb a drip-less seal and I can't remember exactly how I did it (oe even if I did it correctly at the time
Do I just take a hose from the engine
seacock (before the water pump) or after the water pump
but before the engine cooling
system or some other way.
And what sort of hose should be used as the barb on the PPS seal seems to be 10 mm (3/8") and this appears an uncommon size in my area unless I just use a cheap
PVC hose (
). currently I have a piece of 8 mm (5/16") fuel
line pushed as a temporary measure until I get is sorted.
Also does anyone actually put a ball-valve or similar in the line as essentially it is an underwater thru-hull. I was thinking of a short piece of hose from the barb on the seal to a small ball-valve and then to the water supply but I can't say I have ever seen such an arrangement.
The engine is a Yanmar 2GM20 raw water
cooled and everything is below the water line.
Thanks in advance.