SBV-1250-P 1-1/4" Flanged Seacock with Side NPT Port| GROCO
I'm thinking about doing an install of one of these. These special seacocks are a cool concept. The idea is that the engine seacock has a 1" NPT port in the side that allows it to be plumbed to a pickup in the bilge. In the event of an emergency, you can turn your engine into a crash pump that sucks water from the bilge instead of the thru-hull.
Problems:
After a phone call with Groco, I confirmed that the valve handle can be positioned in a way that turns on both the thru-hull and the port, allowing water from outside to flood the bilge (potential sinking hazard). The 1" inline valve off the port would prevent this from becoming catastrophic since the valve would *should* always be closed unless actually using the crash pump feature, but overall, this setup significantly complicates the engine seacock picture.
Groco makes a very cool locking 1" valve that could essentially eliminate the issue of inadvertently turning the crash pump port. The locks makes it so that you have to deliberately work to turn this valve on.
IBVL-1000 1" NPT Bronze Locking Valve| GROCO
Your thoughts?
I'm thinking about doing an install of one of these. These special seacocks are a cool concept. The idea is that the engine seacock has a 1" NPT port in the side that allows it to be plumbed to a pickup in the bilge. In the event of an emergency, you can turn your engine into a crash pump that sucks water from the bilge instead of the thru-hull.
Problems:
After a phone call with Groco, I confirmed that the valve handle can be positioned in a way that turns on both the thru-hull and the port, allowing water from outside to flood the bilge (potential sinking hazard). The 1" inline valve off the port would prevent this from becoming catastrophic since the valve would *should* always be closed unless actually using the crash pump feature, but overall, this setup significantly complicates the engine seacock picture.
Groco makes a very cool locking 1" valve that could essentially eliminate the issue of inadvertently turning the crash pump port. The locks makes it so that you have to deliberately work to turn this valve on.
IBVL-1000 1" NPT Bronze Locking Valve| GROCO
Your thoughts?