Galley sink drain C&C 30 Mk1
Hello All
I have a C&C 30 Mk 1, a fine old boat that has a history of different
owners. Recently, we had a very cold snap with temperatures hitting the –
12to – 16 range. A good stress test for the boat’s plumbing for sure. To
make a long story short, I need to know how the galley sink drainage ought
to be configured on this boat. You can read more for detail, or simply
respond. All information will be appreciated.
…. In the aftermath of the cold snap, I found that there was some seepage
from the galley sink. And there I found an odd configuration. The 1.5-inch
drain was stepped down to a 1-inch diameter hose that ran into the drainage
for the cockpit. There a Y fitting was screwed into the seacock (a
1.5-inch diameter) that allowed the 1-inch drainage from the sink to drain
into that seacock. The lip onto which the 1-inch sink drain line attached
itself was pitifully short—about 1 inch, and below the water line. Not very
safe and a configuration that can not fully drain the sink.
The upshot is that I have to change the galley sink drainage system. The
C&C 30 Mk 1 owners manual gives no details on this—but it does show that
the cockpit and galley sink drainage are separate systems. The local
chandlery folk advise me to install a new drainage thru-hull (with a gate
valve) between the bottom of the sink and the waterline, to ensure that it
drains properly. But this is a wide margin leaving me without a precise
idea of where to put the thru-hull. And I am not sure whether I need an
elbow under the sink--or how that ought to be configured.
Can anyone tell me how the gally sink drainage was handled by C&C at the
outset. Are there any specs or design principles that I could use to help
me pinpoint these positions or design the new system?
Your help will be appreciated.
Best, Alex Netherton
Dulcibella, Nanaimo BC
Your configuration sounds exactly like that as I have seen on 2 other C&C 30 Mark 1. I believe that is stock configuration.
My 35-1, probably the same time frame, has that same arrangement, galley
sink drains to the starboard cockpit drain. I have replaced the hoses
and thru hull fittings but used the same arrangement 10 years ago, so
far so good.
Neil Gallagher
Weatherly, 35-1
Glen Cove, NY
On 2/8/2024 5:38 PM, Alexander Netherton via CnC-List wrote:
Hello All
I have a C&C 30 Mk 1, a fine old boat that has a history of different
owners. Recently, we had a very cold snap with temperatures hitting
the – 12to – 16 range. A good stress test for the boat’s plumbing for
sure. To make a long story short, I need to know how the galley sink
drainage ought to be configured on this boat. You can read more for
detail, or simply respond. All information will be appreciated.
…. In the aftermath of the cold snap, I found that there was some
seepage from the galley sink. And there I found an odd configuration.
The 1.5-inch drain was stepped down to a 1-inch diameter hose that ran
into the drainage for the cockpit. There a Y fitting was screwed into
the seacock (a 1.5-inch diameter) that allowed the 1-inch drainage
from the sink to drain into that seacock. The lip onto which the
1-inch sink drain line attached itself was pitifully short—about 1
inch, and below the water line. Not very safe and a configuration that
can not fully drain the sink.
The upshot is that I have to change the galley sink drainage system.
The C&C 30 Mk 1 owners manual gives no details on this—but it does
show that the cockpit and galley sink drainage are separate systems.
The local chandlery folk advise me to install a new drainage
thru-hull (with a gate valve) between the bottom of the sink and the
waterline, to ensure that it drains properly. But this is a wide
margin leaving me without a precise idea of where to put the
thru-hull. And I am not sure whether I need an elbow under the
sink--or how that ought to be configured.
Can anyone tell me how the gally sink drainage was handled by C&C at
the outset. Are there any specs or design principles that I could use
to help me pinpoint these positions or design the new system?
Your help will be appreciated.
Best, Alex Netherton
Dulcibella, Nanaimo BC
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu
Hi Neil,
Our (1974 C&C 30-1) sink and starboard cockpit rain was run exactly as you describe yours.
While our boat was out last winter we had thru-hulls and seacocks replaced. The company doing that work informed me the shared arrangement would not pass survey and is no longer permitted by ABYC. So, we separated sink and cockpit drains and now have an additional thru-hull.
Ours was installed without an elbow but with a slight sideways S bend to create a bit of a p-trap with drain running to a new thru-hull at the aft port side of the cabinet below the sink. This is better for storage in the cabinet but worse for accessing the seacock. Overall I’m very happy with the install, feeling slightly safer knowing that some very unlikely freak accident will not cause cockpit to drain into cabin via galley sink.
Happy to send a photo of new drain, seacock, thru-hull under galley counter next time I’m at the boat.
Andrew
1974 30mk1
Gulf Islands, BC
Mine runs to a through hull just slightly right (looking into the
locker) of directly below the sink.
The downside to this, is that it is in the way when accessing the dip
stick for the 2QM engine and
the exhaust drain for winterizing. I re-routed the down route a bit to
give me more space.
I wouldn't really see an issue in routing to the cockpit drain, it is
nearby and handy, and likely
resolves some of the access issues above.
Cheers,
Jeff Nelson
Muir Caileag
C&C 30 - 549
Armdale Y.C.
On 2024-02-08 18:38, Alexander Netherton via CnC-List wrote:
Hello All
I have a C&C 30 Mk 1, a fine old boat that has a history of different
owners. Recently, we had a very cold snap with temperatures hitting
the – 12to – 16 range. A good stress test for the boat’s plumbing for
sure. To make a long story short, I need to know how the galley sink
drainage ought to be configured on this boat. You can read more for
detail, or simply respond. All information will be appreciated.
…. In the aftermath of the cold snap, I found that there was some
seepage from the galley sink. And there I found an odd configuration.
The 1.5-inch drain was stepped down to a 1-inch diameter hose that ran
into the drainage for the cockpit. There a Y fitting was screwed into
the seacock (a 1.5-inch diameter) that allowed the 1-inch drainage
from the sink to drain into that seacock. The lip onto which the
1-inch sink drain line attached itself was pitifully short—about 1
inch, and below the water line. Not very safe and a configuration that
can not fully drain the sink.
The upshot is that I have to change the galley sink drainage system.
The C&C 30 Mk 1 owners manual gives no details on this—but it does
show that the cockpit and galley sink drainage are separate systems.
The local chandlery folk advise me to install a new drainage
thru-hull (with a gate valve) between the bottom of the sink and the
waterline, to ensure that it drains properly. But this is a wide
margin leaving me without a precise idea of where to put the
thru-hull. And I am not sure whether I need an elbow under the
sink--or how that ought to be configured.
Can anyone tell me how the gally sink drainage was handled by C&C at
the outset. Are there any specs or design principles that I could use
to help me pinpoint these positions or design the new system?
Your help will be appreciated.
Best, Alex Netherton
Dulcibella, Nanaimo BC
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu
The sink drain in my galley (C&C 42 Custom) discharges through a thru-hull directly below the sink. The sink in the head is configured the same way. If I were to do it over, I might offset the thru-hulls a bit so the hoses wouldn’t interfere with storage as they do now.
From: Jeff Nelson via CnC-List cnc-list@cnc-list.com
Sent: Friday, February 9, 2024 7:16 AM
To: Alexander Netherton via CnC-List cnc-list@cnc-list.com
Cc: Jeff Nelson jhnelson24@gmail.com
Subject: Stus-List Re: Galley sink drain C&C 30 Mk1
Mine runs to a through hull just slightly right (looking into the locker) of directly below the sink.
The downside to this, is that it is in the way when accessing the dip stick for the 2QM engine and
the exhaust drain for winterizing. I re-routed the down route a bit to give me more space.
I wouldn't really see an issue in routing to the cockpit drain, it is nearby and handy, and likely
resolves some of the access issues above.
Cheers,
Jeff Nelson
Muir Caileag
C&C 30 - 549
Armdale Y.C.
On 2024-02-08 18:38, Alexander Netherton via CnC-List wrote:
Hello All
I have a C&C 30 Mk 1, a fine old boat that has a history of different owners. Recently, we had a very cold snap with temperatures hitting the – 12to – 16 range. A good stress test for the boat’s plumbing for sure. To make a long story short, I need to know how the galley sink drainage ought to be configured on this boat. You can read more for detail, or simply respond. All information will be appreciated.
…. In the aftermath of the cold snap, I found that there was some seepage from the galley sink. And there I found an odd configuration. The 1.5-inch drain was stepped down to a 1-inch diameter hose that ran into the drainage for the cockpit. There a Y fitting was screwed into the seacock (a 1.5-inch diameter) that allowed the 1-inch drainage from the sink to drain into that seacock. The lip onto which the 1-inch sink drain line attached itself was pitifully short—about 1 inch, and below the water line. Not very safe and a configuration that can not fully drain the sink.
The upshot is that I have to change the galley sink drainage system. The C&C 30 Mk 1 owners manual gives no details on this—but it does show that the cockpit and galley sink drainage are separate systems. The local chandlery folk advise me to install a new drainage thru-hull (with a gate valve) between the bottom of the sink and the waterline, to ensure that it drains properly. But this is a wide margin leaving me without a precise idea of where to put the thru-hull. And I am not sure whether I need an elbow under the sink--or how that ought to be configured.
Can anyone tell me how the gally sink drainage was handled by C&C at the outset. Are there any specs or design principles that I could use to help me pinpoint these positions or design the new system?
Your help will be appreciated.
Best, Alex Netherton
Dulcibella, Nanaimo BC
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu
Consider elbows and tees on seacocks. Our boat came with elbows on all the seacocks and the hoses were routed to lay along the inside of the hull and that gave good access to lockers.
I read a tip from Don Casey on the engine raw water intakes and changed the elbow to a tee with a plug so I can more easily winterize the engine or unclog the thruhull from inside during the sailing season. The tee also provides a place to connect a hose to run the engine when the boat is on the hard, something I always do before launching. The tee normally has a bronze plug on top and gets a hose-to-pipe adapter when using a hose.
Chuck S
I've been meaning to do the same for my boat for about 20 years now.
Maybe next year when I'm retired
I'll finally get it done. Right now, I just pull the raw water intake
hose to strainer off and put on a hose to a
through hull in a bucket. Nestles nicely in the corner of the locker
held in place by the locker hatch. I then
just feed it antifreeze.
I've done similar to my well pump at my cottage, in case I lose prime, I
can simply push the water to the
pump from the well using a secondary small pump to regain prime. Works
like a charm.
Cheers,
Jeff Nelson
Muir Caileag
C&C 30 - 549
Armdale Y.C.
On 2024-02-09 10:49, CHARLES SCHEAFFER via CnC-List wrote:
Consider elbows and tees on seacocks. Our boat came with elbows on
all the seacocks and the hoses were routed to lay along the inside of
the hull and that gave good access to lockers.
I read a tip from Don Casey on the engine raw water intakes and
changed the elbow to a tee with a plug so I can more easily winterize
the engine or unclog the thruhull from inside during the sailing
season. The tee also provides a place to connect a hose to run the
engine when the boat is on the hard, something I always do before
launching. The tee normally has a bronze plug on top and gets a
hose-to-pipe adapter when using a hose.
Chuck S
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu
On my 30 MK I (hull #79, 1972), the galley sink drain Ys into the starboard cockpit drain, but upstream from the seacock (which is actually a gate valve - bad, I know). The Y is high enough that I don’t think it’s below waterline.
I’ll want to redo the drain someday because the seal from the sink to the pipe drips a bit. But given how little I use the galley sink - mostly to catch empty beer cans thrown below from the cockpit - it’s not an urgent high priority project for me.
Cheers,
Randy Stafford
SV Grenadine
C&C 30 MK I #79
Ken Caryl, CO
On Feb 8, 2024, at 3:38 PM, Alexander Netherton via CnC-List cnc-list@cnc-list.com wrote:
Hello All
I have a C&C 30 Mk 1, a fine old boat that has a history of different owners. Recently, we had a very cold snap with temperatures hitting the – 12to – 16 range. A good stress test for the boat’s plumbing for sure. To make a long story short, I need to know how the galley sink drainage ought to be configured on this boat. You can read more for detail, or simply respond. All information will be appreciated.
…. In the aftermath of the cold snap, I found that there was some seepage from the galley sink. And there I found an odd configuration. The 1.5-inch drain was stepped down to a 1-inch diameter hose that ran into the drainage for the cockpit. There a Y fitting was screwed into the seacock (a 1.5-inch diameter) that allowed the 1-inch drainage from the sink to drain into that seacock. The lip onto which the 1-inch sink drain line attached itself was pitifully short—about 1 inch, and below the water line. Not very safe and a configuration that can not fully drain the sink.
The upshot is that I have to change the galley sink drainage system. The C&C 30 Mk 1 owners manual gives no details on this—but it does show that the cockpit and galley sink drainage are separate systems. The local chandlery folk advise me to install a new drainage thru-hull (with a gate valve) between the bottom of the sink and the waterline, to ensure that it drains properly. But this is a wide margin leaving me without a precise idea of where to put the thru-hull. And I am not sure whether I need an elbow under the sink--or how that ought to be configured.
Can anyone tell me how the gally sink drainage was handled by C&C at the outset. Are there any specs or design principles that I could use to help me pinpoint these positions or design the new system?
Your help will be appreciated.
Best, Alex Netherton
Dulcibella, Nanaimo BC
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu