Shower Waste Debacle

[Brownstone1892]

Hi all,

Some of you may have seen my post in the Electrics forum for my steam shower reinstallation. What a palaver! Anyhoo, now we're on to the plumbing. Seems to be the same level of competence involved for this job as well, with the flexi pipe being siliconed into the boss strap. Needless to say, it just fell out when I waggled it.

What I'm left with is two boss straps, one of which has been sealed up, the other looks like it has a 60mm ID. I have a couple of questions:

1. Is this a standard ID for a boss strap?
2. Can I get a 60mm to 40mm reducer, so I can use a new 40mm flexi pipe?
3. Is there a better/easier/cheaper solution to this problem?

Here's what we're dealing with, any help would be greatly appreciated.

Cheers,

BS...

 

[TCCHeating]

https://www.angelplastics.co.uk/Category/604/Adaptors-Reducers

 

[Newboy]

Looking at the boss itself, I'd be concerned at what's been used to seal it to the soil pipe. It looks like mastic has been used - it should be solvent welded.

I'd also recommend a solvent welded reducer in the boss - can't come adrift even under pressure.

Or even http://www.screwfix.com/p/mcalpine-...mm/55722#product_additional_details_container

 

[Brownstone1892]

https://www.angelplastics.co.uk/Category/604/Adaptors-Reducers

This one I'll assume?:

 

[Brownstone1892]

Looking at the boss itself, I'd be concerned at what's been used to seal it to the soil pipe. It looks like mastic has been used - it should be solvent welded

I don't think there's much I can do about this, is there? Can you remove a boss strap, clean it up and fit another correctly?

Cheers,

BS...

 

[TCCHeating]

https://www.angelplastics.co.uk/Category/604/Adaptors-Reducers

This one I'll assume?:

Yes mate

 

[Brownstone1892]

Yes mate

Superb, thanks to everyone for their advice, fairly sure I can take it from here.

Cheers,

BS...

 

[Newboy]

I don't think there's much I can do about this, is there? Can you remove a boss strap, clean it up and fit another correctly?

If it's not been solvent welded then it will be easy to remove. If some type of mastic has been used clean the pipe up and solvent weld a strap boss

 

[TCCHeating]

I don't think there's much I can do about this, is there? Can you remove a boss strap, clean it up and fit another correctly?

If it's not been solvent welded then it will be easy to remove. If some type of mastic has been used clean the pipe up and solvent weld a strap boss

Even better use solvent gap filling cement. Its much stronger. I've never had much success with normal solvent on strap ons

 

[Brownstone1892]

Even better use solvent gap filling cement. Its much stronger. I've never had much success with normal solvent on strap ons

Historically, that last sentence would've had me guffawing all over the shop, but as I'm now over 40 I must remain straight faced.

Will this stuff do the trick? I'll assume I'm safe to use the same stuff on any solvent weld applications, such as the 40mm pipe to new boss strap?

Thanks again for your continued advice.

BS...

 

[Brownstone1892]

This post has been replaced by a new thread created in the flooring forum.

Cheers,

BS...

 

[Brownstone1892]

One more question about the strap on (quiet at the back!) Would you guys consider using the 40mm adapter that comes with this strap on, or go with the 60mm to 40mm reducer I posted earlier?

Thanks again, again,

BS...

 

[Newboy]

I wouldn't recommend using the rubber insert type on a hidden connection. Use solvent-weld then there's no chance of a fitting coming loose or the rubber perishing.

The solvent you linked to in post #10 isn't gap filling - it's ok to use but gap-filling solvent gives you more safety if you're not confident of getting a good seal

 

[Brownstone1892]

I have everything I need now, thanks again for all your awesome advice!

Cheers,

BS...