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ADVICE -Shower leaking via 300mm UPV panels gap? Best way to seal??

View the thread, titled "ADVICE -Shower leaking via 300mm UPV panels gap? Best way to seal??" which is posted in Showers and Wetrooms Advice on UK Plumbers Forums.

Hi All

Noticed the floor around shower had a pool of water, looked like shower leaking from below, presumed it was trap but all good, could not see where water was coming from?

I turned on the showed head and viewed underneath base and the ONLY time i had a leak was when the water jet was hitting on vertical join in the UPVA cladding (middle one in pic).

How can i seal this tiny gap cleanly? I looked into spray sealants, are they thin enough to lightly spray into the tongue/groove join/gap?

Do i just smear silicone along the whole vertical length/tiny gap and make a mess byt trying to force it on the join???

Would superglue work, it's thin and could fill the joint???

Or should i just glue a piece if vertical 'make up' and seal each side??

I also removed the disability seat but that was after i found the where the leak was coming from, all silicone will be removed/spotless (the showers off/drying out/i will seal/pump the holes with silicone)

Cheers Shower leak.jpg
 
Anyone advise please.

Shower has all dried out, so the vertical gap can now be resolved, juts not sure how i can get a 'sealant' in between the tiny gap?

Or do i just glue a strip of white plastic 'make-up' over it and silicone each side of that?

Thanks
 
I presume they are tongue and groove and should have been siliconed on installation, however.

Me personally to fix this I would clean it all up with isopropanol then force in Dow Corning silicone sealant and clean up the face with a fugi sealant tool.
Then final clean of residue with isopropanol.
 
I presume they are tongue and groove and should have been siliconed on installation, however.

Me personally to fix this I would clean it all up with isopropanol then force in Dow Corning silicone sealant and clean up the face with a fugi sealant tool.
Then final clean of residue with isopropanol.

So get this -https://www.NoLinkingToThis/p/dow-785-sanitary-sealant-clear-310ml/38292
and cover the joins, then force it in with a fuji tool (i have a copy one), then clean any excess sealant up with isoprop? I never new it would remove excess wet sealant! I suppose a rag just lightly soaked in it will remove it??

It will all be cleaned down, i will spray with isoprop and try get a rag/kitchen roll so it's spotless before i start.

I have several tubes of Screwfixes No-Nonsense clear silicone, why do i need the Dow Corning one?

They are both mould resistant and both contain the same chemicals when i just checked -

Contains: 4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one

Thanks
 
Use what you wish, I just told you what I would do.

After 25 years of people paying me to do this stuff, I go with the products I Know work - other products may work too I don’t know.
 

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ADVICE -Shower leaking via 300mm UPV panels gap? Best way to seal??
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