Water Maker Pressure Vessel Repair

[jrudge]

My water maker has 3 membranes.

The membranes sit in a carbon fibre pressure vessel.

The end of each of these has a steel sleeve and one of these gave way - hence leaking water.

There is no "damage" simply the sleeve has blown out of the carbon fibre.

Were it not for the fact it was running at 900 PSI I would put on epoxy resin and then tap it back with a wood block and a hammer.

However it is running 900 PSI so I bought I would ask first!

When manufactured there will have been a bonding agent between the carbon fibre and the steel. This has failed over the years - not helped by what I did to it but that is another story ( water off, turned on and blew the end off).

As such given there is not damage I cannot see why with the correct adhesive it cant be bonded again. A new one is £400 ish so not daft but not a cheap fix either.

Any informed views?!

Happy to get it repaired and tested if someone knows where.

 

[sailaboutvic]

Hi normally they run at 800 PSI , although it sound a lot , I reckon if you cleaned it up and epoxy it you be fine ,
When I build mine the first fitting I used wasn't tested for high pressure and they worked find for some months until I changed them all .

 

[vas]

+1 on 800psi, are you sure J yours are meant to run at 900? Don't know what else you did to it, but maybe that's one of the reasons it failed.

tbh wouldn't be happy epoxying it (and I've used a couple of barrels of epoxy on different things...)

btw since I'm in the market for a 2540 pressure vessel, care to give us the brand of the pressure vessel that failed (to avoid it just in case)

cheers

V.

 

[jrudge]

It actually runs at 850 sorry - it does however have 900 psi writtten on it

It was a second hand water maker technomare so I don’t think the brand can be blamed !

 

[QBhoy]

I was going to suggest CT1. I used this to repair many pressure systems like a rib, FW cooling system and even a tyre in an emergency...but 900 psi is about 60 bar. Maybe beyond it’s capabilities. Not sure any sealant would manage this. If it’s anythjng like the RO or evaporator systems I used to work on, they rely on more than sealants. The seals and pressure fits are serious.