Head Hose - Suggestions?

[Chris Reinke]

I have reviewed the previous messages regarding the replacement of head hoses to reduce odors. I have decided to make the replacement part of this year pre-season tasks. I have a CD330 with the optional "Y-valve" for overboard discharge. I have three questions which I would appreciate any comments on:

1 - How is the "heavy vinyl" hose diameter determined? I know the raw intake is a 3/4" seacock and the overboard discharge is refereed to as a 1 1/2" seacock, but are the hoses also 3/4" and 1 1/2"? Is the hose size an outside dimension or an inside dimension?

2 - Any ideas as to the lengths of each type which I will need? I would like to begin the project this weekend but I will not have an opportunity to get onboard to measure beforehand.

3 - Is the hose from tank to deck pump out fitting the same diameter as the overboard discharge (1 1/2")?

I will use the boiling method of heating the hose as mentioned in previous messages.

Any comments would be appreciated.

Thanks,
Chris

PS - Tentative launch date is May 5!!!!!!



Chris.reinke@Transamerica.com

[Don S]

Chris,
I replaced the hoses last year. The holding tank end fit nicely with 1-1/2" Vinyl (the good stuff from West Marine) but I couldn't get it to fit the Spartan seacock for the overboard. The Jabsco Y-valve ends were no problem either. I wasn't able to try hot water, but I did try a heat gun which collapsed the hose. I ended up not replacing the overboard section, which was in good shape anyway. 1-1/2" is the right size and maybe hot water will help with the seacock.

Don Sargeant
~~COQUINA~~
Looking for a sunny weekend in Greenwich Cove

I have reviewed the previous messages regarding the replacement of head hoses to reduce odors. I have decided to make the replacement part of this year pre-season tasks. I have a CD330 with the optional "Y-valve" for overboard discharge. I have three questions which I would appreciate any comments on:

1 - How is the "heavy vinyl" hose diameter determined? I know the raw intake is a 3/4" seacock and the overboard discharge is refereed to as a 1 1/2" seacock, but are the hoses also 3/4" and 1 1/2"? Is the hose size an outside dimension or an inside dimension?

2 - Any ideas as to the lengths of each type which I will need? I would like to begin the project this weekend but I will not have an opportunity to get onboard to measure beforehand.

3 - Is the hose from tank to deck pump out fitting the same diameter as the overboard discharge (1 1/2")?

I will use the boiling method of heating the hose as mentioned in previous messages.

Any comments would be appreciated.

Thanks,
Chris

PS - Tentative launch date is May 5!!!!!!

don@cliggott.com

[D. Stump, Hanalei]

Chris,

For Q-1: Inside diameter, don't use OdorSafe hose, too expensive, Triton is same stuff at 1/2 the cost. Be aware, this hose only comes in 1 1/2" and is VERY difficult to work with! Think about replacing it with standard black hose, it was good enough for most of these years, anyways, why make things tough on yourself?

For Q-2: I have no idea, different for each vessel, ya got to measure at prices of 15 or so dollars per foot!

For Q-3: Yes, at least on Hanalei it is, and deck fittings are generally standard size, so I would think the same holds true for your vessel.

Remember, boiling water makes it real easy to get the hose on, but, once on, it is almost impossible to move or remove, so plan ahead. The hose under the stove area on Hanalei is going to be replaced with standard black hose, if I can get it out of the boat!!

Good luck, and have fun playing in the John!!!

Dave Stump
Captain Commanding
s/v Hanalei CD-30

[mike]

I replaced hoses on two boats and found putting the ends in boiling water worked very well. Keep them there a minute or so until they are quite soft. They do cool and assume their original shape and hardness quicly and once on are hard to get off without splitting with a blade along the side.

By the way, on a Westsail 32 and a Pearson Triton where I replaced the plumbing, I had odor problems. I finally read that the size of the vent hose is very important. The .5 or .75" that comes standard on the holding tanks apparently isn't enough. On the Triton (we sold the Westsail before I realized how to fix the problem) I added a 1.25" vent to the existing .5". The next weekend, almost all the odor was gone. The following week, only a trace was left. Last week, there was no smell at all. So if, after you repalce the hoses, there still is a smell, consider the adequacy of the venting system. Mike



michaelconniesmith@home.com

[Scott Ritchey]

It can be very difficult removing old hose, which practically bonds to some fittings. When I replaced my cockpit scupper hoses, I ended up using a Dremmel tool with the cut-off wheel bit to cut through the reinforcing wire in the hose. After that it wasn't difficult to "peel" the rest of the hose off the fitting. Just be careful not to score the fitting with the cut-off wheel.



ritcheyvs@aol.com

[wayne genier]

I replaced hoses on two boats and found putting the ends in boiling water worked very well. Keep them there a minute or so until they are quite soft. They do cool and assume their original shape and hardness quicly and once on are hard to get off without splitting with a blade along the side.

By the way, on a Westsail 32 and a Pearson Triton where I replaced the plumbing, I had odor problems. I finally read that the size of the vent hose is very important. The .5 or .75" that comes standard on the holding tanks apparently isn't enough. On the Triton (we sold the Westsail before I realized how to fix the problem) I added a 1.25" vent to the existing .5". The next weekend, almost all the odor was gone. The following week, only a trace was left. Last week, there was no smell at all. So if, after you repalce the hoses, there still is a smell, consider the adequacy of the venting system. Mike

You have intrigued my-what do you mean you added a vent? there is a vent fitting for a hose on the holding tank-so did you change the diameter of the hose coming off that? do you have 2 vents? split the hose with a "T" ? any further technical info would be appreciated-thanks



grenier@ma.ultranet.com