how to connect pipes to a whale pump?

chrisbitz

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18 Sep 2012
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Bromley, Kent - Sail in Medway
www.freyacat.co.uk
I had a whale freshwater pump fitted, looking similar to this one:

http://www.piratescave.co.uk/whale-...nce-boat-toilets-pumps-heads-freshwater-pumps

the problem is, that there are no ribs on the tubes, so to get a decent and safe fit, you have to tighten the jubilee clips so tight that they crush the tubes. So now I need a new one.

How are you meant to connect hose securely to these pumps?

They are intended to fit directly to the appropriate size hoses but they can also be fitted with adapters to enable "quick connect" fittings to be used.

See the Whale pumps website for details
 
I had a whale freshwater pump fitted, looking similar to this one:

http://www.piratescave.co.uk/whale-...nce-boat-toilets-pumps-heads-freshwater-pumps

the problem is, that there are no ribs on the tubes, so to get a decent and safe fit, you have to tighten the jubilee clips so tight that they crush the tubes. So now I need a new one.

How are you meant to connect hose securely to these pumps?

If you're using the correct hose size (and the correct jubilee clip size), you shouldn't need to overtighten the clips. You might try smearing the tube with silicone sealant before fitting the hose.

And, if it's any consolation, the pump you linked to is 20% cheaper here - http://www.ebay.co.uk/itm/Whale-GP1...ervan_Caravan_Accessories&hash=item2a32730a9e
 
It seems strange to me though, that in every other use of hoses attaching to pipes, there have been ribs on the pipe. They give structural strength, and something for the clip to bite into... Even when the jubilee clip is tight, you can still pull the hose off relatively easily, hence my crushing the tube with too much pressure..

Why would these be so different??

I'm just going to buy a different pump that has ribs on...
 
If you're using the correct hose size (and the correct jubilee clip size), you shouldn't need to overtighten the clips. You might try smearing the tube with silicone sealant before fitting the hose.

....

If you must use a sealant, it should be fit for potable water of course.
Either use pushfit plumbing, or a hose that is a very tight fit.
 
I've recently had such a pump stop working after a modest 3 years or so and have just bought a replacement. Looking at it, the inlet and outlet pipes look plenty strong enough to stand up to jubilee clips although conceivably one could crush them by trying hard enough. With the correct size hoses it was no problem getting watertight joints 3 years ago and I never had a problem with the hoses pulling off even though they weren't clipped to anything. I have yet to dismantle the old pump to see what went wrong.
 
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