Accumulator tank.

this 29EDAADF-BDF0-4AED-8254-704FBFF159E4-large.jpg seems to be the tool,Flexible Long Reach Hose Clamp Pliers - 26201 - Machine Mart - Machine Mart looks quite clever
 
Robmac said:
I'm giving these type clips a try after reading a recommendation;
MIKALOR Double Wire Spring Band Type Hose Clips Silicone Pipe Tube Clamp

I will monitor how they perform.
Click to expand...

Those spring wire or spring steel clips are ok for pressure and temperature. VAG use them to secure the main cooling hoses on their cars.

I had to replace a hose on my wife's car. Struggled a bit at first but ok approached at the correct angle and succeeded with just regular pliers from my tool box.

there are special tools like this which I would buy if used more often:
2 PIECE 8-1/2" HOSE CLAMP PLIER SET: Amazon.co.uk: DIY & Tools

Says the jaws rotate to allow catching the ends of the clip from different angles. Not tried them so can't comment.

I always wonder about worm drive clips but encountered many and not seen any damage to hoses.
 
Thanks for helpful comment David, I wouldn't want Rob's water works to spring a leak. ;)

The bottom hose on my wife's 1.9 PD engine has this, possibly made by Norma
VAG 1.9PD bottom hose.jpg

and the bottom hose on the PSA turbo diesel in our 1999 van is similar
PSA XUD9 bottom hose.jpg

My Ford TDCi has larger hoses with worm drive clips as do many others. I am familiar with the rolled ends of pipe and how it can be quite difficult to remove the hose having spent a couple of hours underneath wrestling the pressure hose from the turbo to the intercooler on the Ford.

Rob's proposed pressure of 16psi is close enough to the pressure in most car cooling systems and his hot water delivery temperature should be much less than typical car cooling water temp of about 90C.

Norma say of their Normaclamp FBS : "A springband hose clamp with dynamic spring properties which ensure an automatic re-tensioning effect. It is particularly suitable for use with hose-spigot joints which are submitted to extreme temperature changes.
NORMA Group

Those "two ear" clips you use on air lines are classed as low pressure on the Mikalor web site:
404: archivo o directorio no encontrado.

Their "Normal" Mini-Clip might do well for Rob's application. I suggest finding the appropriate size of whichever clip is chosen is important.
 
Just a quick update.

I have now spoken to the manufacturers, (Propex). They assure me that the 30 PSI pump will do no damage to the boiler and it will function perfectly well.

The only downside would be that the pressure relief valve would occasionally weep and produce the odd drip. As I am draining this valve to the outside of the van, this won't be a problem, so rather than pay to have this pump sent back and change it, I am going to stick with it.

I realise that I only have a 'phone conversation to go on, and nothing in writing, but it's a risk I am willing to take.
 
The '2 eared' clips are the ones my gas fitter recommended for the rubber gas hose, instead of the worm drive clips.
 
Just swopped the shower head for one of these to try and save a bit of water instead of turning the main mixer valve on and off when showering. It seems to do the job.

Ebay 152428955764
 
I've now checked the pressure relief valve on the Malaga and it is set at 3.0 Bar (43 PSI), so I think it is unlikely to weep.
 
Fazerloz said:
Just swopped the shower head for one of these to try and save a bit of water instead of turning the main mixer valve on and off when showering. It seems to do the job.

Ebay 152428955764
Click to expand...

Another member gave me something similar, but it wouldn't fit the thread on my old van's shower hose.

On my new van I am using a Thetford mixer tap/shower, do you know if this would fit? (I presume they are standard)
 
Robmac said:
Just a quick update.

I have now spoken to the manufacturers, (Propex). They assure me that the 30 PSI pump will do no damage to the boiler and it will function perfectly well.

The only downside would be that the pressure relief valve would occasionally weep and produce the odd drip. As I am draining this valve to the outside of the van, this won't be a problem, so rather than pay to have this pump sent back and change it, I am going to stick with it.

I realise that I only have a 'phone conversation to go on, and nothing in writing, but it's a risk I am willing to take.
Click to expand...

What does the installation manual stipulate as maximum pump pressure?
 
Robmac said:
Another member gave me something similar, but it wouldn't fit the thread on my old van's shower hose.

On my new van I am using a Thetford mixer tap/shower, do you know if this would fit? (I presume they are standard)
Click to expand...

No definite answer but I would certainly think so. I bet £7 on it fitting. :cheers:
 
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