1-1/2" Hose Tee fitting below waterline

[newimaging]

Hi there, I was wondering if anyone has a recommendation where to find a 1-1/2" Hose Tee fitting that is appropriate for under waterline use. I am replacing the cockpit drains on my Hunter 22 (1980's).
The old hose leaked and just found out the Tee has cracks in it. Probably the original almost 40 years old
So I got this new hose. MPI Sanitation Hose Plastic Reinforced

And here is the only option I found for the Tee, but its not Brass or Marelon, would it be safe?

T-H Marine Plumbing Fittings 3-Way Tee

T & H Marine TH Marine Plumbing Fittings 3-Way Tee <li> Resists UV & Chemicals</li> <li> 3-Way Barb</li>

www.wholesalemarine.com

Thanks for good advice

 

[jssailem]

Here is a bronze T-Fitting 1 1/2 “ Tee Fittings - Bronze, NPT

Add to it some straight fittings with nipples Groco Pipe-to-Hose Straight - Standard Flow - Bronze, NPT

And you have a T-Fitting that meets the standard for beneath the water line

 

[dlochner]

It looks like the Tee is lower than the through hull. If the is the case, water will lie in the hose and Tee and freeze in the winter. That is probably the reason the Tee cracked. See if you can raise the Tee so that water drains. If that is not possible, vacuum the water out of the drains in the fall and fill with antifreeze.

 

[Peggie Hall HeadMistress]

I noticed that the old hose is corrugated hose that needed "cuffs" at connections...which you won't need with sanitation hose. So in addition to the tee, you'll want to replace those cuffs with male-male pvc hose fittings...the same type that's used in a sanitation system. And all the connections should be double clamped, with screws 180 degrees apart.

Dometic/SeaLand has a complete assortment of PVC hose fittings including wyes, tees, 45s and 90s.
SeaLand PVC hose fittings, available from a number of retailers. Note that except for the "kits" it's necessary to include the separate hose connector(s)...individual components need to be "glued" together with PVC cement.

--Peggie

 

[smokey73]

From the look of it a portion of the corrugated hoses and the T fitting are below the waterline and there no seacock or valve for isolation of a leak. I may be wrong in my observation though. While I know that Hunter used these corrugated hoses for some locations below the waterline but do you really want that kind of hose that for application especially if you can't isolate it? See Rich Stidger's post on "this can sink your boat" or some similar title. You might want to consider sanitation hose or exhaust hose if you can. Of course it will need to be flexible enough to make the bends but just my 2cw.

 

[Johnb]

From the look of it a portion of the corrugated hoses and the T fitting are below the waterline and there no seacock or valve for isolation of a leak. I may be wrong in my observation though. While I know that Hunter used these corrugated hoses for some locations below the waterline but do you really want that kind of hose that for application especially if you can't isolate it? See Rich Stidger's post on "this can sink your boat" or some similar title. You might want to consider sanitation hose or exhaust hose if you can. Of course it will need to be flexible enough to make the bends but just my 2cw.

Quite honestly I would look for a way to take the drain out through the transom - above the water line if possible with an outlet for each drain.

What the others above have not said is that current set up is woefully poor for all of the reasons given - single clamps, poor choice of material, not draining.

 

[newimaging]

Thanks everyone for the sound advice!
I skimmed on the bronze, since that would have cost 1/10 of what I paid for the boat, but I agree it would have been the most solid option. I did go with the new sanitation hose thats reinforced, and barely bents, which is the reason I could not keep the Tee higher to drain for non freezing option. So winterizing (vacuum and antifreeze) it is. As far as the Tee I finally found a nylon one that seems very beefy for $4.

Nylon Hose Tees Barbed | West Marine

Check out our Nylon Hose Tees Barbed and more from West Marine!

www.westmarine.com

I have some emergency plugs with me, and will make sure I have one that fits well inside the drain thats below the waterline for the worst case scenario.

Here is a final pic of the install

 

[dlochner]

Thanks everyone for the sound advice!
I skimmed on the bronze, since that would have cost 1/10 of what I paid for the boat, but I agree it would have been the most solid option. I did go with the new sanitation hose thats reinforced, and barely bents, which is the reason I could not keep the Tee higher to drain for non freezing option. So winterizing (vacuum and antifreeze) it is. As far as the Tee I finally found a nylon one that seems very beefy for $4.

Nylon Hose Tees Barbed | West Marine

Check out our Nylon Hose Tees Barbed and more from West Marine!

www.westmarine.com

I have some emergency plugs with me, and will make sure I have one that fits well inside the drain thats below the waterline for the worst case scenario.

Here is a final pic of the install
View attachment 178427

Looks good. Is the through hull above the waterline when you are not sailing? It looks like it might be.

If you stuck a piece of 2x4 under the tee you might get it high enough to drain in the winter. That and store it bow up and stern down. I'm assuming it is on a trailer.

 

[mermike]

Is that port below the waterline? If so, how do you plug it if one of the fittings fails? To rephrase, where's the seacock?