Anyone know if this hole in pipe is meant to be there?

[nameisme]

Hello all

I just noticed this hole in my outside bathroom sink pipe and wondering its meant to be there or if not, how and with what should I fill it with?

Thanks al

 

[denso13]

No, someone made a hole in it to clear a blockage. Use a suitable sized bolt, or wooden plug, to fill it.

 

[ChrisJP]

The picture shows an inspection/access hatch within a few inches of the hole, so it would be a bit bizarre to deliberately make the hole to clear a blockage.
The hole looks to me caused by rust, so the area around it might be fragile also.
I would carefully clean off all the paint around the hole (about 1/2in all round, inspect for rust and treat with converter, and then patch the hole with some perforated zinc sheet and 2-part filler paste. That also avoids creating an obstruction within the pipe which using a bolt would do.

 

[denso13]

The picture shows an inspection/access hatch within a few inches of the hole, so it would be a bit bizarre to deliberately make the hole to clear a blockage.

Old trick, knock a small hole with a hammer and push a piece of wire through the wall part. That's definitely what it is.

That also avoids creating an obstruction within the pipe which using a bolt would do.

Not if you don't screw it in too far.

 

[Old Salt]

You can see where the previous hole repair has peeled off.

 

[mattylad]

If you clean the paint off, you may be able to use a stepped drill and drill it out to 20mm, this is a common size for bungs, blanking plugs, blind grommets etc. Stick one in with some silicone then the following weekend paint over it again and forget about it.

 

[nameisme]

All to complex for me DIY wise.

I have bought some of this.
Would this work?.
Only thing I was worried about is it falling inside before its dried.

https://www.screwfix.com/p/soudal-fix-all-flexi-multi-use-sealant-adhesive-white-290ml/525kv

 

[nameisme]

Anyone know if what I suggested would work as the other things mentioned are to complicated for me

 

[denso13]

Yes, clean the area first.

 

[nameisme]

I also noticed this on a different pipe. Same methods above to seal up?

Is a perforated zinc sheet cutable with sisors? And I can just slot it in and then seal in place with a 2-part filler paste?

 

[nameisme]

Hi all,

Followed the advice and used perforated zinc sheet and sealed around it with soudal fix all high tack to keep it in place.

What do others think?

 

[ChrisJP]

That looks like solid zinc not the perforated kind, which of course has holes all over it.
It should work but does look a bit untidy and you may have created a crevice between the outside of the pipe and the inside of the zinc, unless you bedded the zinc into the soudal before sealing around it.

 

[nameisme]

That looks like solid zinc not the perforated kind, which of course has holes all over it.
It should work but does look a bit untidy and you may have created a crevice between the outside of the pipe and the inside of the zinc, unless you bedded the zinc into the soudal before sealing around it.

sourcing map 1 Pcs Zinc Sheets, 99.99% High Purity Zinc Plate 0.004"x4"x39"(0.1x100x1000mm) Metal Zinc Foil Zinc Anode Strip for Science Lab Industry DIY Craft : Amazon.co.uk: Business, Industry & Science

sourcing map 1 Pcs Zinc Sheets, 99.99% High Purity Zinc Plate 0.004"x4"x39"(0.1x100x1000mm) Metal Zinc Foil Zinc Anode Strip for Science Lab Industry DIY Craft : Amazon.co.uk: Business, Industry & Science

www.amazon.co.uk

Yes didnt want the type with holes on it as didnt want small particles getting into the drain pipe. As wanted to obviously seal.up the hole. I thought that was the purpose ie when it was suggested getting a screw/bolt etc?

Do you think it will do the job?

i dont actually know what you mean when you say "created a crevice between the outside of the pipe and the inside of the zinc, unless you bedded the zinc into the soudal before sealing around it."

I made sure there are no gaps around the edges of the bit of zinc with a good layer of the high tack so totally air tight

 

[ChrisJP]

What I meant was that if you placed the zinc sheet over the hole and then sealed around it, it will have left a crevice between the outside of the pipe and the inside of the zinc sheet. If on the other hand you placed sealant around the hole and then bedded the zinc into it, that would have prevented the crevice being formed.
Having such a crevice is not best practice but probably won't do any harm, though it will allow cr*p to build up in it

 

[denso13]

you think it will do the job?

It's fine. Perhaps coat it all smooth then paint it if you have some.