Hose Connections

[Tom Keevil]

I am preparing to install a shower pump, and want to connect it to the sink through-hull. My question is how can I connect the 3/4" pump outlet hose to the 1 1/2" sink drain hose? I have spent some time looking in catalogues, my local marine suppy store, and various regular hardware stores, and can't find any type of T-fitting or combination of fittings that would accomplish this easily. Any ideas on a source for such a fitting?

Tom Keevil
CD33 Rover
Charleston, OR



sharphat@mind.net

[Boyd]

Hi Tom...

The only way I can think of doing it would be to use a 1 1/2" tee cut into the 1 1/2" line then a reducer to the 3/4". This is a lot of fittings and clamps to double up. Make sure the Tee is above the waterline a lot.

However I dont think it is a good idea to connect the two fixtures to the same seacock. For instance if the sink seacock were closed then ...oops the shower water would come up out of the sink.. Does the shower pump have an anti backflow feature? If not sink water might end up in the shower or worse yet on a heel you could get seawater. I have heard stern warnings about never Teeing a drain line... not sure why now.

The shower on my boat drains to a sump which has a pump to a thru hull high above the waterline with a loop in the hose. The top of the loop goes to the underside of the deck.

Would like to hear what others think of this.


Boyd
s/v Tern
CD30 MkII
Fort Lauderdale, Fla

I am preparing to install a shower pump, and want to connect it to the sink through-hull. My question is how can I connect the 3/4" pump outlet hose to the 1 1/2" sink drain hose? I have spent some time looking in catalogues, my local marine suppy store, and various regular hardware stores, and can't find any type of T-fitting or combination of fittings that would accomplish this easily. Any ideas on a source for such a fitting?

Tom Keevil
CD33 Rover
Charleston, OR

Boyd@wbta.cc

[John R.]

Boyd is correct. You shouldn't tee lines such as these unless there is a backflow preventer of one type or another but with their use they create their own set of problems at times. So think twice before making double duty of any drain/seacock. If you use a rubber impeller or diaphragm type pump you would be basically okay. The risks associated with using a closed seacock while using any drain is a normal risk with all drains if someone forgets to open it but can be much worse in a pumped drain situation such as a shower sump like Boyd has pointed out. In most cases I don't think this is a huge worry because most people are wise enough to make sure the drain seacock is open before using the sump pump but it is something you should give consideration to.

There is a company (sorry I've forgotten their name) that makes specific adapters out of glass filled nylon (like Marelon) that make connections such as you are trying to assemble a very simple install. They manufacture adapters that are pre-angled to assist in preventing backflow. They are directional in their design similar to a Y connector. Instead of your sump pump line entering the sink drain at a 90 degree angle it would instead enter at about a 20 degree angle. That in and of itself helps with proper hose routing to be above the waterline. West Marine does stock some of this companies basic fittings such as multiple sized hose barb adapters so I assume West would have the companies catalog and be able to help you obtain the adapter you need such as a 1.5" to .75" angled hose adapter. I know that company makes them. You might also try contacting Headhunters or a similar company. See the link below. Good luck.

Hi Tom...

The only way I can think of doing it would be to use a 1 1/2" tee cut into the 1 1/2" line then a reducer to the 3/4". This is a lot of fittings and clamps to double up. Make sure the Tee is above the waterline a lot.

However I dont think it is a good idea to connect the two fixtures to the same seacock. For instance if the sink seacock were closed then ...oops the shower water would come up out of the sink.. Does the shower pump have an anti backflow feature? If not sink water might end up in the shower or worse yet on a heel you could get seawater. I have heard stern warnings about never Teeing a drain line... not sure why now.

The shower on my boat drains to a sump which has a pump to a thru hull high above the waterline with a loop in the hose. The top of the loop goes to the underside of the deck.

Would like to hear what others think of this.


Boyd
s/v Tern
CD30 MkII
Fort Lauderdale, Fla

I am preparing to install a shower pump, and want to connect it to the sink through-hull. My question is how can I connect the 3/4" pump outlet hose to the 1 1/2" sink drain hose? I have spent some time looking in catalogues, my local marine suppy store, and various regular hardware stores, and can't find any type of T-fitting or combination of fittings that would accomplish this easily. Any ideas on a source for such a fitting?

Tom Keevil
CD33 Rover
Charleston, OR

">Headhunter</a>

[John R.]

Tom,
I found their name in my files and their web link is below. They should have the fitting you need if that is the way you want to go.


here is the link: Boyd is correct. You shouldn't tee lines such as these unless there is a backflow preventer of one type or another but with their use they create their own set of problems at times. So think twice before making double duty of any drain/seacock. If you use a rubber impeller or diaphragm type pump you would be basically okay. The risks associated with using a closed seacock while using any drain is a normal risk with all drains if someone forgets to open it but can be much worse in a pumped drain situation such as a shower sump like Boyd has pointed out. In most cases I don't think this is a huge worry because most people are wise enough to make sure the drain seacock is open before using the sump pump but it is something you should give consideration to.

There is a company (sorry I've forgotten their name) that makes specific adapters out of glass filled nylon (like Marelon) that make connections such as you are trying to assemble a very simple install. They manufacture adapters that are pre-angled to assist in preventing backflow. They are directional in their design similar to a Y connector. Instead of your sump pump line entering the sink drain at a 90 degree angle it would instead enter at about a 20 degree angle. That in and of itself helps with proper hose routing to be above the waterline. West Marine does stock some of this companies basic fittings such as multiple sized hose barb adapters so I assume West would have the companies catalog and be able to help you obtain the adapter you need such as a 1.5" to .75" angled hose adapter. I know that company makes them. You might also try contacting Headhunters or a similar company. See the link below. Good luck.

Hi Tom...

The only way I can think of doing it would be to use a 1 1/2" tee cut into the 1 1/2" line then a reducer to the 3/4". This is a lot of fittings and clamps to double up. Make sure the Tee is above the waterline a lot.

However I dont think it is a good idea to connect the two fixtures to the same seacock. For instance if the sink seacock were closed then ...oops the shower water would come up out of the sink.. Does the shower pump have an anti backflow feature? If not sink water might end up in the shower or worse yet on a heel you could get seawater. I have heard stern warnings about never Teeing a drain line... not sure why now.

The shower on my boat drains to a sump which has a pump to a thru hull high above the waterline with a loop in the hose. The top of the loop goes to the underside of the deck.

Would like to hear what others think of this.

Boyd
s/v Tern
CD30 MkII
Fort Lauderdale, Fla

I am preparing to install a shower pump, and want to connect it to the sink through-hull. My question is how can I connect the 3/4" pump outlet hose to the 1 1/2" sink drain hose? I have spent some time looking in catalogues, my local marine suppy store, and various regular hardware stores, and can't find any type of T-fitting or combination of fittings that would accomplish this easily. Any ideas on a source for such a fitting?

Tom Keevil
CD33 Rover
Charleston, OR

[Chris Scheck]

You're talking about a pump to drain the sump in the floor of the head when you shower? How about just letting the sump drain into the bilge? Would it be so bad to have soapy water in your bilge? I think some solutions are more complicated than the problems they are meant to solve.

Chris Scheck
RAGTIME CD33
Newport



cscheck@aol.com

[Lyle Lunson]

Sometimes letting the sump drain into the bilge can cause the bilge pump to be clogged up with hair!!!!

You're talking about a pump to drain the sump in the floor of the head when you shower? How about just letting the sump drain into the bilge? Would it be so bad to have soapy water in your bilge? I think some solutions are more complicated than the problems they are meant to solve.

Chris Scheck
RAGTIME CD33
Newport

[Boyd]

Hi Chris...

I am all for simple solutions, however, I have been on boats that the shower drains to the bilge and the result is a very stinky bilge. Seems the soap and whatever? decompose, and stink like welll..... somebody hurled in the bilge. These boat owners resort to bleach to control the stinch. I can only imagine the odor if a kid pees in the shower...well enough said. The refrigerator should not drain to the bilge for the same reason. Nothing like a little spilled milk on a hot day.

One of my personal goals in life is to have a dusty dry bilge. Not there yet but getting close. I hate a stinky moldy boat.

Happy showering...

Boyd
s/v Tern
CD 30 MkII
Fort Lauderdale, Fla

You're talking about a pump to drain the sump in the floor of the head when you shower? How about just letting the sump drain into the bilge? Would it be so bad to have soapy water in your bilge? I think some solutions are more complicated than the problems they are meant to solve.

Chris Scheck
RAGTIME CD33
Newport

Boyd@wbta.cc

[Tom Keevil]

Thanks! That is exactly the source that I needed. I am aware of the need to prevent backflow and siphoning. The fewer holes I drill in my hull, the better I feel about it. Draining this muck into the bilge is what we're trying to avoid, so that's not an option for us.

Tom Keevil
CD33 Rover
Charleston, OR






sharphat@mind.net

[Warren More]

Hi Chris...

I am all for simple solutions, however, I have been on boats that the shower drains to the bilge and the result is a very stinky bilge. Seems the soap and whatever? decompose, and stink like welll..... somebody hurled in the bilge. These boat owners resort to bleach to control the stinch. I can only imagine the odor if a kid pees in the shower...well enough said. The refrigerator should not drain to the bilge for the same reason. Nothing like a little spilled milk on a hot day.

One of my personal goals in life is to have a dusty dry bilge. Not there yet but getting close. I hate a stinky moldy boat.

Happy showering...

Boyd
s/v Tern
CD 30 MkII
Fort Lauderdale, Fla

You're talking about a pump to drain the sump in the floor of the head when you shower? How about just letting the sump drain into the bilge? Would it be so bad to have soapy water in your bilge? I think some solutions are more complicated than the problems they are meant to solve.

Chris Scheck
RAGTIME CD33
Newport

I don't have a shower on my CD28, but wouldn't it easy to simply pump out the bilge right after the shower before it had a chance to "decompose"? Also I find that pouring half a box of baking soda once a month into the bilge eliminates any unpleasant odors.
Warren Moore
CD28 Crisscross



wwmoore@hotmail.com

[Boyd]

That last little bit the pump doesnt get is the problem.

Boyd
s/v Tern
CD30 MkII
Fort Lauderdale,Fla.

Hi Chris...

I am all for simple solutions, however, I have been on boats that the shower drains to the bilge and the result is a very stinky bilge. Seems the soap and whatever? decompose, and stink like welll..... somebody hurled in the bilge. These boat owners resort to bleach to control the stinch. I can only imagine the odor if a kid pees in the shower...well enough said. The refrigerator should not drain to the bilge for the same reason. Nothing like a little spilled milk on a hot day.

One of my personal goals in life is to have a dusty dry bilge. Not there yet but getting close. I hate a stinky moldy boat.

Happy showering...

Boyd
s/v Tern
CD 30 MkII
Fort Lauderdale, Fla

You're talking about a pump to drain the sump in the floor of the head when you shower? How about just letting the sump drain into the bilge? Would it be so bad to have soapy water in your bilge? I think some solutions are more complicated than the problems they are meant to solve.

Chris Scheck
RAGTIME CD33
Newport

I don't have a shower on my CD28, but wouldn't it easy to simply pump out the bilge right after the shower before it had a chance to "decompose"? Also I find that pouring half a box of baking soda once a month into the bilge eliminates any unpleasant odors.
Warren Moore
CD28 Crisscross

Boyd@wbta.cc

[Randy Bates]

That last little bit the pump doesnt get is the problem.

Boyd
s/v Tern
CD30 MkII
Fort Lauderdale,Fla.

Hi Chris...

I am all for simple solutions, however, I have been on boats that the shower drains to the bilge and the result is a very stinky bilge. Seems the soap and whatever? decompose, and stink like welll..... somebody hurled in the bilge. These boat owners resort to bleach to control the stinch. I can only imagine the odor if a kid pees in the shower...well enough said. The refrigerator should not drain to the bilge for the same reason. Nothing like a little spilled milk on a hot day.

One of my personal goals in life is to have a dusty dry bilge. Not there yet but getting close. I hate a stinky moldy boat.

Happy showering...

Boyd
s/v Tern
CD 30 MkII
Fort Lauderdale, Fla

I don't have a shower on my CD28, but wouldn't it easy to simply pump out the bilge right after the shower before it had a chance to "decompose"? Also I find that pouring half a box of baking soda once a month into the bilge eliminates any unpleasant odors.
Warren Moore
CD28 Crisscross

If you can keep that "last 1/2 inch" fairly new it's not a problem at all. On our CD25D "Seraph" we drain the head sink and shower plus the icebox into the bilge. Occasionally we flush the bilge with a gallon or so of fresh water with a tad of clorex added. Never a smell and the system is about as simple as you can get. Several sources into the bilge, two ways out, auto bilge pump and the old manual standby.



randy.bates@baesystems.com