Contact   Imprint   Advertising   Guidelines

Can't remove leaking valves from bladder

Forum for kitesurfers
szert
Rare Poster
Posts: 38
Joined: Tue Jul 30, 2019 9:38 pm
Local Beach: Camber Sands, UK
Gear: looking for...
Brand Affiliation: None
Has thanked: 58 times
Been thanked: 1 time

Can't remove leaking valves from bladder

Postby szert » Sat Feb 01, 2020 11:23 am

I'm trying to remove my leaking valves from my bladder (Blade Trigger 12m, 2016 model) so I could reglue them with Aquasure.
How Tos say to use a hairdrier or boiling water but it just doesn't work , a thinner outer layer around the valve is not releasing. I concerned to heat it more as I don't want to damage the bladder.
Some instructions say to cut out the valve if can't remove it with heat. But will I be able to reglue the same valve if I cut it out?
20200201_100933.jpg
20200201_101000.jpg
Last edited by szert on Sat Feb 01, 2020 12:22 pm, edited 1 time in total.

Herman
Very Frequent Poster
Posts: 609
Joined: Tue Jun 04, 2019 7:09 pm
Style: My Own.
Gear: SLE, foils and C kites, TTs, Directionals, Landboards, Buggy.
Brand Affiliation: None
Has thanked: 69 times
Been thanked: 128 times

Re: Can't remove leaking valves from bladder

Postby Herman » Sat Feb 01, 2020 12:00 pm

My guess is the valve has been welded to the bladder where the ring of the valve seat cannot be lifted. Personally if the rest of the valve/connector is sound I would just glue the outer area of the valve seat that you can lift.

Before I knew better I never bothered to cook the valves off with heat. I just used to pull the valve cold until it stopped lifting and glued that. Don't recall any failures even then.

If the rest of the valve is not sound you will have to cut. The method I would go for first is to carefully trim the valve off cutting both sides of the weld annulus; obviously the inner cut is the tricky one as you have to create a gap between bladder and valve seat. Then just stick a new valve on, I would run a bead of kiteforum.com over the outer edge of valve seat, 2-3 mm overlap onto valve seat and bladder, with both the re-stick or replacement.

You could make or maybe buy a tear aid doughnut to stick over the valve but this should not be necessary. Don't rush into the job wait to see if you get better advice. Quoting the make of the bladder might be helpful in this respect!

Regards Herman
Last edited by Herman on Sat Feb 01, 2020 12:45 pm, edited 1 time in total.
These users thanked the author Herman for the post:
szert (Sat Feb 01, 2020 12:22 pm)
Rating: 8.33%

szert
Rare Poster
Posts: 38
Joined: Tue Jul 30, 2019 9:38 pm
Local Beach: Camber Sands, UK
Gear: looking for...
Brand Affiliation: None
Has thanked: 58 times
Been thanked: 1 time

Re: Can't remove leaking valves from bladder

Postby szert » Sat Feb 01, 2020 12:23 pm

It's a 12m Blade Trigger, 2016 model (added info to the original post too)
Herman wrote:
Sat Feb 01, 2020 12:00 pm
Quoting the make of the bladder might be helpful in this respect!

szert
Rare Poster
Posts: 38
Joined: Tue Jul 30, 2019 9:38 pm
Local Beach: Camber Sands, UK
Gear: looking for...
Brand Affiliation: None
Has thanked: 58 times
Been thanked: 1 time

Re: Can't remove leaking valves from bladder

Postby szert » Sat Feb 01, 2020 3:29 pm

I managed to deglue the valve but there is domut ring inside the bladder which was glued to a donut from inside. It seems close to impossible to reglue it from inside.

I might be able to pull the inner donut and glue it from outside? Suggestions?
20200201_142218.jpg

madworld
Frequent Poster
Posts: 430
Joined: Mon Apr 29, 2013 8:52 pm
Local Beach: Never never land
Style: Cruising
Gear: Rich peoples throw aways.
Has thanked: 9 times
Been thanked: 14 times

Re: Can't remove leaking valves from bladder

Postby madworld » Sat Feb 01, 2020 4:36 pm

These users thanked the author madworld for the post:
szert (Sat Feb 01, 2020 7:56 pm)
Rating: 8.33%

Herman
Very Frequent Poster
Posts: 609
Joined: Tue Jun 04, 2019 7:09 pm
Style: My Own.
Gear: SLE, foils and C kites, TTs, Directionals, Landboards, Buggy.
Brand Affiliation: None
Has thanked: 69 times
Been thanked: 128 times

Re: Can't remove leaking valves from bladder

Postby Herman » Sat Feb 01, 2020 7:37 pm

I have had a valve glued to the inside. I was able to extract it without enlarging the whole in the bladder. I then just used a self adhesive replacement on the outside with a overlapping bead of kiteforum.com at the outer edge of the valve seat. Mark the orientation of the valve on the bladder before you lose all the witness marks.

I think you can get oversized valve seats if needed, loads of info on the net.......Dr Tuba and others....
These users thanked the author Herman for the post:
szert (Sat Feb 01, 2020 7:57 pm)
Rating: 8.33%

szert
Rare Poster
Posts: 38
Joined: Tue Jul 30, 2019 9:38 pm
Local Beach: Camber Sands, UK
Gear: looking for...
Brand Affiliation: None
Has thanked: 58 times
Been thanked: 1 time

Re: Can't remove leaking valves from bladder

Postby szert » Sun Feb 02, 2020 10:16 am

I ended up pulling out the inner donut with the valve on it and regluing it from the outside. It seems to hold air.
Time will tell how well it holds under heavy use.
If it works then I saved myself buying 3 valves (and waiting for the delivery).
Thanks for all the tips

Herman
Very Frequent Poster
Posts: 609
Joined: Tue Jun 04, 2019 7:09 pm
Style: My Own.
Gear: SLE, foils and C kites, TTs, Directionals, Landboards, Buggy.
Brand Affiliation: None
Has thanked: 69 times
Been thanked: 128 times

Re: Can't remove leaking valves from bladder

Postby Herman » Sun Feb 02, 2020 10:36 am

Glad to hear you are sorted. I would expect it to be just fine. I think the only reason to change out rather than reglue an otherwise sound valve is if it is very old and seen a lot of UV. I have even got a several year old aquasure bead repair on the outside of a connector that was torn at the 90° bend, probably by a line snag. Stay lucky!

Regards Herman
Last edited by Herman on Sun Feb 02, 2020 3:28 pm, edited 2 times in total.

User avatar
Gigi;)
Very Frequent Poster
Posts: 529
Joined: Wed Jan 12, 2005 7:23 pm
Location: drtuba.eu, kite-stuff.org, eXtremist.si, kajtar.si
Has thanked: 0
Been thanked: 4 times
Contact:

Re: Can't remove leaking valves from bladder

Postby Gigi;) » Sun Feb 02, 2020 11:46 am

Hi,
check out valve replacement videos here:

https://drtuba.eu/services-support/serv ... to-manuals

eran m
Frequent Poster
Posts: 369
Joined: Sun Jul 11, 2004 9:59 am
Has thanked: 1 time
Been thanked: 1 time

Re: Can't remove leaking valves from bladder

Postby eran m » Sun Feb 02, 2020 1:12 pm

szert wrote: I ended up pulling out the inner donut with the valve on it and regluing it from the outside. It seems to hold air.
Time will tell how well it holds under heavy use.
If it works then I saved myself buying 3 valves (and waiting for the delivery).
Thanks for all the tips
this is the way to do it :thumb: (i done it before with blade kite),
warm a little bit the area(with hair fan),push the valve inside(like u did at the pic),
& then pull it out through the exist hole(it possible),
clean it & glue it from outside,
important to use good glue like bison vinil , put weight & wait few hours


Return to “Kitesurfing”

Who is online

Users browsing this forum: CALencioni, drone, Google [Bot], PrfctChaos and 19 guests