Doing a minor refit on an 1982 Hunter 36 and I'm in the process of replacing all hoses. During a recent survey it was noted that the two cockpit drains go to thru-hulls that do not have seacocks on them. The thru-hulls are below the waterline, and have what I think are stainless steel tubes glassed in to the hull. They are relatively difficult to get to anyway, but has anyone tried to backfit seacocks on to these? If not, what previsions have you installed for controlling leaks? A heads up to old boat owners, if you haven't replaced these hoses recently - DO SO SOON. I've found the hoses get small leaks easily.
- Status
Doing a minor refit on an 1982 Hunter 36 and I'm in the process of replacing all hoses. During a recent survey it was noted that the two cockpit drains go to thru-hulls that do not have seacocks on them. The thru-hulls are below the waterline, and have what I think are stainless steel tubes glassed in to the hull. They are relatively difficult to get to anyway, but has anyone tried to backfit seacocks on to these? If not, what previsions have you installed for controlling leaks? A heads up to old boat owners, if you haven't replaced these hoses recently - DO SO SOON. I've found the hoses get small leaks easily.
Lotta' glass work.
You might find that somewhere in the archives. I remember that one of the H37C owners did exactly that. It might have been Tom Hadoulias. I think he cut out that glassed tube and inserted a bronze thru-hull. I cannot recall whether he used a real seacock or a simple ball valve. I think it would be difficult to get a seacock to fit flush with the hull. I have always worried about that area of my H37C. It is so hard to see down in there and that tube can be stepped on if working in the locker.
You might find that somewhere in the archives. I remember that one of the H37C owners did exactly that. It might have been Tom Hadoulias. I think he cut out that glassed tube and inserted a bronze thru-hull. I cannot recall whether he used a real seacock or a simple ball valve. I think it would be difficult to get a seacock to fit flush with the hull. I have always worried about that area of my H37C. It is so hard to see down in there and that tube can be stepped on if working in the locker.
Lotta' glass work.
You might find that somewhere in the archives. I remember that one of the H37C owners did exactly that. It might have been Tom Hadoulias. I think he cut out that glassed tube and inserted a bronze thru-hull. I cannot recall whether he used a real seacock or a simple ball valve. I think it would be difficult to get a seacock to fit flush with the hull. I have always worried about that area of my H37C. It is so hard to see down in there and that tube can be stepped on if working in the locker.
You might find that somewhere in the archives. I remember that one of the H37C owners did exactly that. It might have been Tom Hadoulias. I think he cut out that glassed tube and inserted a bronze thru-hull. I cannot recall whether he used a real seacock or a simple ball valve. I think it would be difficult to get a seacock to fit flush with the hull. I have always worried about that area of my H37C. It is so hard to see down in there and that tube can be stepped on if working in the locker.
Why seacocks?
Curious why the desire for seacocks on cockpit drains. Recently had one of the hoses come off at the drain end resulting in 3" of water in cabin. Best way to describe is cockpit becomes a funnel. If seacocks are left closed cockpit will fill til water finds a way in. On 27, thruhulls are only an inch or two below waterline. I suspect the actual hose connection is above the waterline inside the boat therefore no real danger. Maybe the 37 is set up diferent. Just curious. I do advise periodic check of hoses and connections though. Might even suggest replacement every twenty years or so.
Curious why the desire for seacocks on cockpit drains. Recently had one of the hoses come off at the drain end resulting in 3" of water in cabin. Best way to describe is cockpit becomes a funnel. If seacocks are left closed cockpit will fill til water finds a way in. On 27, thruhulls are only an inch or two below waterline. I suspect the actual hose connection is above the waterline inside the boat therefore no real danger. Maybe the 37 is set up diferent. Just curious. I do advise periodic check of hoses and connections though. Might even suggest replacement every twenty years or so.
Why seacocks?
Curious why the desire for seacocks on cockpit drains. Recently had one of the hoses come off at the drain end resulting in 3" of water in cabin. Best way to describe is cockpit becomes a funnel. If seacocks are left closed cockpit will fill til water finds a way in. On 27, thruhulls are only an inch or two below waterline. I suspect the actual hose connection is above the waterline inside the boat therefore no real danger. Maybe the 37 is set up diferent. Just curious. I do advise periodic check of hoses and connections though. Might even suggest replacement every twenty years or so.
Curious why the desire for seacocks on cockpit drains. Recently had one of the hoses come off at the drain end resulting in 3" of water in cabin. Best way to describe is cockpit becomes a funnel. If seacocks are left closed cockpit will fill til water finds a way in. On 27, thruhulls are only an inch or two below waterline. I suspect the actual hose connection is above the waterline inside the boat therefore no real danger. Maybe the 37 is set up diferent. Just curious. I do advise periodic check of hoses and connections though. Might even suggest replacement every twenty years or so.
Seacocks on cockpit scuppers.
The main reason for seacocks on the scupper exits is protection from a hose failure. If the scupper thru-hull is below the waterline and the hose comes off or is ruptured a lot of water will enter the boat. And fast. My personal reason would be to strengthen what appears as a weak point in the boat. That glassed in tube that the hose attaches to does not look substantial. Then again after twenty-five years it is still original with no leaks. What are the odds that you will be on the boat when it happens? You have to leave them open during the times you are away from the boat. Am I talking myself out of this? Should I just double clamp new and better hoses?
The main reason for seacocks on the scupper exits is protection from a hose failure. If the scupper thru-hull is below the waterline and the hose comes off or is ruptured a lot of water will enter the boat. And fast. My personal reason would be to strengthen what appears as a weak point in the boat. That glassed in tube that the hose attaches to does not look substantial. Then again after twenty-five years it is still original with no leaks. What are the odds that you will be on the boat when it happens? You have to leave them open during the times you are away from the boat. Am I talking myself out of this? Should I just double clamp new and better hoses?
Cockpit Drains
Ed, I also have a H37C (1981) and have never changed the cockpit drain hoses. I do not believe ball valves or any valve is a good idea on the cockpit drains. As you just said what are the chances of you being there when they eventually leak? Also on my boat the cockpit drains are not below the water line (at rest). Mine are far enough along the rise of the stern to be out of the water as is the engine exhaust. When under power they will go below the water just like the exhaust but not at rest. I check the hoses and the DOUBLE clamps fairly regularly and live with it. I just can't see when I would ever want to close these drains. I do recommend the hoses be changed from the originals as the original corregated hoses collect dirt and eventually reduce their effectiveness. Fair winds and safe passages for 2005. Don
Ed, I also have a H37C (1981) and have never changed the cockpit drain hoses. I do not believe ball valves or any valve is a good idea on the cockpit drains. As you just said what are the chances of you being there when they eventually leak? Also on my boat the cockpit drains are not below the water line (at rest). Mine are far enough along the rise of the stern to be out of the water as is the engine exhaust. When under power they will go below the water just like the exhaust but not at rest. I check the hoses and the DOUBLE clamps fairly regularly and live with it. I just can't see when I would ever want to close these drains. I do recommend the hoses be changed from the originals as the original corregated hoses collect dirt and eventually reduce their effectiveness. Fair winds and safe passages for 2005. Don
Agree with Don.
I think you are right Don. Good hoses and two good stainless clamps per connection. Does anyone have a hose recommendation? Something strong but flexible. Do you other H37C owners have the crossing hoses(port scupper to starboard thru-hull) with low spots?
I think you are right Don. Good hoses and two good stainless clamps per connection. Does anyone have a hose recommendation? Something strong but flexible. Do you other H37C owners have the crossing hoses(port scupper to starboard thru-hull) with low spots?
Changes
"Do you other H37C owners have the crossing hoses(port scupper to starboard thru-hull) with low spots? " I used to, but they didn't work that well. I made the following mod: http://www.geocities.com/rainbow_chaser.geo/cpdrain.html Which helped a lot. I used a smooth sanitary type hose to replace the original ones. they now cross over, but do it flat instead of dropping down to collect water and trash. Here's another view: http://www.geocities.com/rainbow_chaser.geo/battery.html
"Do you other H37C owners have the crossing hoses(port scupper to starboard thru-hull) with low spots? " I used to, but they didn't work that well. I made the following mod: http://www.geocities.com/rainbow_chaser.geo/cpdrain.html Which helped a lot. I used a smooth sanitary type hose to replace the original ones. they now cross over, but do it flat instead of dropping down to collect water and trash. Here's another view: http://www.geocities.com/rainbow_chaser.geo/battery.html
Cockpit drains above waterline
Anyway, they should be. The drain exits on our '77 h27 are. If I were going to do major surgery on drains that exited below the waterline, I would just glass them over, and install new ones above the waterline. I can tink of a number of problems for drains with valves on them. Are we missing something? I wonder why the original drains are below the water line? David Lady Lillie
Anyway, they should be. The drain exits on our '77 h27 are. If I were going to do major surgery on drains that exited below the waterline, I would just glass them over, and install new ones above the waterline. I can tink of a number of problems for drains with valves on them. Are we missing something? I wonder why the original drains are below the water line? David Lady Lillie
- Status