Fitting toilet waste hose

Cousin Jack

Cousin Jack

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Have any of you chaps got any great tricks, (other than employing a large primate!), for getting 1.5" waste hose on to a toilet and valve??

Thanks
 
Cousin Jack said:
Have any of you chaps got any great tricks, (other than employing a large primate!), for getting 1.5" waste hose on to a toilet and valve??

Thanks
Click to expand...

Heat is the answer. Water perhaps if it is boiling hot...... but the risk of scalding is high!

Hot air gun... with some caution to avoid completely melting the pipe .... also warm the valve so that it does not immediately cool the pipe again
 
As VicS says, use a hot air gun to soften the pipe - then push in a tapered wooden plug to stretch it a bit - you know, the ones you keep for emergency hull hole repairs and hope to never use - and allow the pipe to cool. It should then easily go over the seacock, and can then be re-softened with a further application of heat, at which point it will shrink back to a tighter fit and can be secured in place with a couple of hose clips.
 
I agree - I have used a mug of boiling water or a hot air gun according to what was available. A bit of washing up liquid as a lubricant helps as well. I have never bothered to heat the hose spigot but working quickly have always got the hose on in reasonable time. You need to leave the hose in the very hot water for some time - and then it goes very soft. Allow the heat to permeate the thickness of the plastic of the hose end!
 
I do now - ditch the stiff white stuff and go for ASAP's seaflow butyl sanitation hose, the grey kind. It's beautifully flexible, and slides easily onto fittings. It's also reputed not to permeate and get smelly, ever.

I've just ripped out a set and replaced with new (replacement due to moving things around, not a problem with the hoses) and both jobs were really easy compared with using the old white stuff when I did it on the old boat.

Only downside is it's a bit pricey. But I reckon it's worth it.

(Incidentally, it's the same stuff that jfm specified for his multi-million pound creation in the long thread over on the mobo forum, so you're in good company :) )

Pete
 
Agree with the above, gave up on the white stuff (anyone want to buy a couple of metres?) I also used wet and dry to smooth the fitting as it was rough and I think that this helped. Of course I expect it is in the most inaccessible place which makes it twice as difficult to do!
 
My original 1972 Blakes heads outlet seacock is 1 3/8ths (35mm?). How stretchy/flexible is the grey stuff from ASAP? ... As in should I go for 32mm or 38mm?
 
prv said:
I do now - ditch the stiff white stuff and go for ASAP's seaflow butyl sanitation hose, the grey kind. It's beautifully flexible, and slides easily onto fittings. It's also reputed not to permeate and get smelly, ever.

I've just ripped out a set and replaced with new (replacement due to moving things around, not a problem with the hoses) and both jobs were really easy compared with using the old white stuff when I did it on the old boat.

Only downside is it's a bit pricey. But I reckon it's worth it.

(Incidentally, it's the same stuff that jfm specified for his multi-million pound creation in the long thread over on the mobo forum, so you're in good company :) )

Pete
Click to expand...

+1

I used the Vetus stuff but all similar (& similar price). Big difference is that if (when) the heads block you'll actually be able to remove the hose, unblock it, and put the hose back. Trouble with all that heat & then a bit of age hardening is that you get a shrink fit attachment. The only way to remove that is a sharp knife.
 
Heat gun is the way ahead, I have just completed 2 very difficult hoses using white sanitation pipe. Working in 2 degrees the whole pipe had to be warmed through until it flexed as required, The ends were made very flexible while the middle softened to bend as required. It does take time and patience to get the heat to the right places at the same time and indeed heating the spigots helps keep the heat in the right place. Getting them off again is about applying sufficient heat. A good pair of gardening gloves helps to avoid burns to the hands.

Yoda
 
KevO said:
How stretchy/flexible is the grey stuff from ASAP? ... As in should I go for 32mm or 38mm?
Click to expand...

Hmm. It's very flexible, but I haven't had any reason to investigate its stretchiness. It has fairly substantial wire reinforcement, which may perhaps stop it expanding? Nevertheless, based on how easily it slipped onto my hose tails, I think in your position I'd be inclined to go for the 32 - but wouldn't bet my life on it fitting.

Problem is that as a cut-to-size product you can't necessarily return it if it's wrong. But buying a metre to test with is not pennies, and won't be any use for the real job even if it is the right size. I wonder if you asked ASAP very nicely, would they send you a six-inch sample?

Pete
 
RobbieW said:
Trouble with all that heat & then a bit of age hardening is that you get a shrink fit attachment. The only way to remove that is a sharp knife.
Click to expand...

Sometimes not even then. Although some of my old hoses were Seaflow, some were the white stuff and needed a hacksaw to remove them. The flush outlet from the pump I had to peel off after sawing down the side, accidentally taking a sliver out of the hose barb on the pump.

The new stuff has been off and on again once already, as when I connected it all up the first time the pump turned out to be knackered! I'd have been really annoyed if I'd shrink-fitted the old-fashioned kind of hose on there and then had to battle to pull it all off again a week later.

New pump went in today, so for the first time since buying the boat we now have a functioning bog!

Pete
 
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