Replace sanitation lines

[MadHatter53]

I’m about ready to replace my vent and pump out lines for both tanks. All three heads have all new lines to both tanks so from the tanks out I have old lines all cracked at every radius. is there one vent thru hull per tank or one for both? I did a quick measurement and it looks like the pump out is 2” and vent is 1 1/2” hose. I can follow the pump out lines to deck plates but I lose the forward tank vent and looks like it goes behind the washer and dryer but can’t confirm.
The stbd tank is gonna be an efer due to access issues so the forward is first. I read that raritan hose is the best and priced accordingly. I also noticed that the 2 way valve for the overboard macerator has a drip at the swivel elbow so some stink is coming from there. Any suggestions, tips or recommendations are greatly appreciated

 

[Captain Ralph]

Double check that vent hose size. We replaced some Hatt lines once and found 1 1/4" vent hose.

 

[rwaldrop13]

Double check that vent hose size. We replaced some Hatt lines once and found 1 1/4" vent hose.

Hear Hear Captain Ralph! My pumpout hose is 1.5 inch, and vent hose is 1.25 inch... I carry samples of all the hoses I've worked with on my boat, and when I walk into the supply house I have the actual hose piece I am matching up. Saved me a lot of hassle during the AC wars I have been thru this spring.

 

[MadHatter53]

Yeah I’ll double check before ordering. I just did a quick OD check and can’t see anything on the hoses.

 

[Boatsb]

I've sold a ton of saniflex hose and only know of it coming in 1 inch a d 1.5 inch..

I'd be interested in seeing where the 1 .250 hose and fittings really exists.

 

[oscarvan]

Picture of replaced vent hose (white) for the fwd center tank. Yes, behind the washer. Do not recall ID off the top of my head. SB/outboard tank vent goes up the side of the hull behind forward facing bench of dinette. I have not seen a way to get to it other than cutting an access in the back of the storage compartment to your right as you head down the stairs. There is an access on mine under the table where I can stick my head in and (sort of) see what's going on. This hose is my next one. It is, I believe, original. Looks like old vacuum cleaner hose.....

 

[metama]

Replaced mine last year down in Florida.
Don't cheap out and use the good hose.

And don't expect to be able to get the old vacuum hose vent out. It go's behind the Washer Drier and is screw in with clamps Hatteras style. (Every 2 feet where you can get to them or not.


We capped them and put in two new vents in the hatch under the table.

 

[MadHatter53]

Thanks Phil, what brand hose did you use ? I planned on using the Raritan sani-flex odor shield.
I’m gonna finish my water lines to washer and forward head so it might be easier to pull the w/d out to tackle both jobs. I can get to the old connections from the access panel behind galley seating but it’s tight. So we all know I’ll end up breaking something on the W/D during R&R and will need to replace them.

 

[HP12Sea]

Those hoses can be brutal to stretch on to barbed fittings.

A heat gun goes a long way to help with softening them up a bit and fitting them on.

Good luck.

 

[oscarvan]

A heat gun goes a long way to help with softening them up a bit and fitting them on.

Good luck.

I've found it easy to over do it with a heat gun. My favorite technique is to bring an (electric) kettle full of water up to 200ºF and stick the hose in there. Even heat, but not too much over 10 or so inches in under 30 seconds. Put dish soap on the barb beforehand. (And don't forget the clamp)

 

[rwaldrop13]

I've found it easy to over do it with a heat gun. My favorite technique is to bring an (electric) kettle full of water up to 200ºF and stick the hose in there. Even heat, but not too much over 10 or so inches in under 30 seconds. Put dish soap on the barb beforehand. (And don't forget the clamp)

I've sacrificed some hose for the heat gun issue - Mine is a 20-year old craft store model, not the heavy-duty kind but it still can over-soften the hose. I try to keep it about 6 inches off the hose and just heat it briefly and avoid twisting while putting it on the barb. Definitely can't stress the need for the dish soap enough, but keep a rag handy to wipe your hands. The hot water method is interesting too.

 

[metama]

I used two.

Raritan for the smaller mid tank that needs some good flex without collapsing. I think most of it was [h=3][FONT=Arial, Helvetica, sans-serif]Trident Marine 101-1124. [/FONT]But I have to check my extra pieces. [/h]