sanitation hose problems

alk

alk

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So I'm trying to re-plumb my head and tank with a diverter to send to the tank or through hull fitting - and the plastic 'barbs' on the diverter ( Jabsco 45490) seem a bit smaller than the diameter of the hose.

Can't tell you how many times i've had to soak sanitation hose in boiling water to get it over a fitting when too tight, had to do that on the pump out fitting with this same hose - but the diverter hose i can't get tight. What am i doing wrong here? Tried heating it up and tightening the clamps all the way, but still not a tight enough fit.
 
The only thing I can think of would be the wrong size valve or the wrong size hose. I wouldn't try any sort of makeshift adapter or using sealant.

You could contact Jabsco to make sure you have the right valve.
 
Using shields 148 series 1.5 inch hose, and the jabsco diverter is also supposed to be 1.5 inch. I thought maybe the hose was oversized, until I connected it up to the deck fitting, which was the usual sanitation hose PITA, with a cup of boiling water needed to soften it up. But on the y-valve, it slips right on, and doesn't seem to tighten enough. I tried a 1.25 hose onto the y-valve and it's not that small - it's like I need a 1 3/8 hose for this valve.

i may just skip the diverter, as I'm going to be about 60 miles from the ocean this year ( as opposed to the 200 yards away last year) but I've already chopped the hose to accommodate the y-valve.
 
When you say "doesn't seem to tighten enough" what do you mean exactly?

Do you mean even with two hose clamps on it you can still easily rotate the hose on the fitting?
 
not easily, but when the hose clamp is cranked as tight as i can get it with a screwdriver, it's leaking water, and if i really force it, I can get it to budge, not rotate, but can get a little motion still. i can try cranking the clamps a bit more with a wrench, but it just seemed odd to me that the hose slipped on so easily. i haven't added the second clamp yet.
 
quote:
Originally posted by alk

not easily, but when the hose clamp is cranked as tight as i can get it with a screwdriver, it's leaking water, and if i really force it, I can get it to budge, not rotate, but can get a little motion still. i can try cranking the clamps a bit more with a wrench, but it just seemed odd to me that the hose slipped on so easily. i haven't added the second clamp yet.

Click to expand...


OK, a redneck approach, but try wrapping duct tape on the hose fitting until you get as tight a fit as possible, then put the hose on and the clamps.

I still think the best plan would be to contact the manufacturer of the valve and ask them why the standard size hose won't fit. Perhaps your valve is defective aand they will replace it.
 
They may have had a bad day at the jabsco factory, but I'll try tonight with the 6 dollar a piece clamps I picked up at lunch. No interest in coating the hose barb with anything. My last boat was purchased from a guy who was convinced it was a good idea to cover hose barbs with 5200. Hacksaws, razors, heat guns and chisels needed to remove every hose. Spent many a day cursing that guy, especially when working on the hard to reach seacocks.
 
I installed one of these last year it;'s a great diverter and installation friendly. Are you sure the ports are not rotating, they are designed to.
Another possibility is you have the 1" optional port installed?
From the cut sheet.....

Jabsco Y-Valve 45490-1000
Ports can be rotated so discharge plumbing can be routed away in parallel, at 900 or in opposite directions, or either up or down without disassembly
Valve is supplied with both 1-1/2" (38 mm) ports (fitted) and extra 1" (25 mm) straight inlet port
 
quote:
Originally posted by alk

They may have had a bad day at the jabsco factory, but I'll try tonight with the 6 dollar a piece clamps I picked up at lunch. No interest in coating the hose barb with anything.
Click to expand...

I understand about not coating the hose barbs, but I don't think any hose clamps are going to make a too large hose fit a too small outlet.

I wasn't thinking the tape would make anything stick better, I was thinking it would make an "adapter" to adapt the fitting to the hose.
 
hopefully it was the wishy-washy hose clamps I was using, combined with the cold weather last week making the hose stiff. Just got back from the boat, cranked it down with the new clamps. I'm definitely not using a 1 inch, or even 1.25 inch fitting; it's close to big enough, just not nearly as snug as sanitation hose is on every other hose barb on this installation or any other I've worked on. Should know in a few days when they launch the boat if it's drip free - if not I'll just go right from the head to the tank, as I doubt I'll be in any safe to discharge waters this season anyhow. thanks everyone for your advice. Now if the marina would just find a new freaking insurance policy so they could start launching boats, I'd be ready to go - but that's a whole other story.
 
Re: struggling to get sanitation hose onto fittings, our latest technique is to use KY Jelly. It works much better than heat or dishwashing liquid. In fact, for the first time, installing the hoses was - dare I say it - easy.

Thanks to Peggie Hall for this advice.
 
KY Jelly is probably something most guys do not carry around or feel comfortable buying; but thanks for the tip!
 
Nancy his problem isn't that the hoses are difficult to get on one hose is actually too lose.
Good luck Alk, it seems many marinas on the east coast are having some issues, some more than others.
Bill
 
Wouldn't the boiling water trick soften the hose enough that the clamps will pull it down?
 
quote:
Originally posted by Nancy

Re: struggling to get sanitation hose onto fittings, our latest technique is to use KY Jelly. It works much better than heat or dishwashing liquid. In fact, for the first time, installing the hoses was - dare I say it - easy.
Click to expand...


Or, use "Radiator Hose Grease" made for the purpose and available at auto parts stores. West Marine sells a similar product made for lubricating hoses to make them easier to install and remove when necessary.
 
quote:
Originally posted by Billylll

Nancy his problem isn't that the hoses are difficult to get on one hose is actually too lose.
Click to expand...
Yes, I know that is the primary problem, but he also mentioned how it's usually such a struggle to install the hoses. Hence my suggestion. :)

Pa Mikee, this is a hangup worth overcoming. ;)
 
Calling Alk what was the resolution? Enquiring minds would like to know.
Bill
 
resolution to the sanitation hose, or the lack of a working and insured travel lift at the marina? I assume the hose is ready to go, but won't know until I'm launched. That may be a while I'm afraid - which sucks since I start paying for my slip in MD as of 6/1.
 
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