Pinholed cast iron waste pipe.

[Alan Reynolds]

Hoping ‘the Oracle’ can help here. My old neighbour who now lives in a very old house with original servants quarters and the old servant bells etc, had a blockage recently.
He managed to shear the bolts on the inspection elbows as someone had used steel bolts and not brass bolts. Anyway, I managed to remove the old studs and fit brass bolts and cleared the blockage. Anyway, he has a water softener and the 4 inch pipe that is after the softener outlet, has started to leak from tiny pinholes. Obviously due to the salt washing along the pipe. To replace the pipe work would be difficult and he doesn’t really want to change the general look of the basement. Any ideas as to what we could use to effectively wrap the cast iron pipe and seal them.

 

[SierraV6]

Hoping ‘the Oracle’ can help here. My old neighbour who now lives in a very old house with original servants quarters and the old servant bells etc, had a blockage recently.
He managed to shear the bolts on the inspection elbows as someone had used steel bolts and not brass bolts. Anyway, I managed to remove the old studs and fit brass bolts and cleared the blockage. Anyway, he has a water softener and the 4 inch pipe that is after the softener outlet, has started to leak from tiny pinholes. Obviously due to the salt washing along the pipe. To replace the pipe work would be difficult and he doesn’t really want to change the general look of the basement. Any ideas as to what we could use to effectively wrap the cast iron pipe and seal them.

Fibreglass? Or an epoxy product such as Devcon maybe?

 

[Wildefalcon]

Could you line the cast pipe?

 

[jenki]

As per Wildefalcon is there any way to line the pipe?

 

[Wildefalcon]

Even if it was replaced and the cast used as a facade? How long is the pipe?

 

[gaz1]

your pipes are at end of life so really want changing

but this will do it but its horrible stuff just wrap it around the pipe

Petro Tape 10m

This petro tape offers you a real helping hand in protecting your pipework, cables and metal fittings from the elements. It's ideal for your projects both above and below ground.This versatile petro tape is non-hardening and non-cracking, making it highly effective as a sealant. It's also highly...

www.toolstation.com

 

[123hotchef]

cut out the rotton section and use a rubber joiner or replace the length,

 

[johnik]

if one part it rotten you can bet the rest wont be far behind, best to replace the whole lot or you will forever be chasing leaks

 

[Agroshield]

What is the length of pipe between the salt water entering it and exiting it? That will determine what is the best solution. If the cast has to remain, can the salt water be diverted to run in a plastic system until the drain?

 

[Screwdriver]

Could you circumvent the existing antique and run a modern system in parallel but hidden?

 

[Mikes]

There is a fibreglass liner that specialists can insert into drain pipes. Don't suppose it is a cheap solution as a specialist job.

 

[Seadog]

Quite a lot of the old gas pipes were lined once they started to leak. I think that compressed air was used to blow them through. How they got them round some of the twisty-turny installations is quite impressive. I am talking 1" gas barrel into houses.

 

[123hotchef]

Quite a lot of the old gas pipes were lined once they started to leak. I think that compressed air was used to blow them through. How they got them round some of the twisty-turny installations is quite impressive. I am talking 1" gas barrel into houses.

they have just done our whole street it was amazing how they fed the new pipe through the old pipe into the house, someone said this new pipe is hydroen ready

 

[mike os]

lining is possible... but if you want to be able to sit comfortably before next easter you will just replace it...

 

[addjunkie]

Option 1

Cast Iron Effect Guttering | Cascade | Brett Martin

Cascade is a range of cast iron effect guttering and downpipe profiles which provide traditional cast iron rainwater and soil systems in PVCu plastic.

www.brettmartin.com

Option 2 wrap with fibergass tape and resin

Option 3 plastic metal Devcon, Belzina etc.

Option 4 for the cheapskate….Bituminous Paint.

 

[Keithmac]

your pipes are at end of life so really want changing

but this will do it but its horrible stuff just wrap it around the pipe

Petro Tape 10m

This petro tape offers you a real helping hand in protecting your pipework, cables and metal fittings from the elements. It's ideal for your projects both above and below ground.This versatile petro tape is non-hardening and non-cracking, making it highly effective as a sealant. It's also highly...

www.toolstation.com

Do they call that Denso tape as well?.

I've had dealings with that in the past, horrible messy stuff but does the job!.

 

[123hotchef]

Do they call that Denso tape as well?.

I've had dealings with that in the past, horrible messy stuff but does the job!.

yes Denso tape is great stuff always use it for any copper in contact with concrete ect

 

[Mikes]

The original advice request from Alan reynolds said that the elderly owner didn't want to change the look of the basement so wrapping the outside of the pipe might not be acceptable. Perhaps another solution would be to replace it using a cast iron system such as Timesaver (used to be Glywed but now sold by Saint Gobain) and move the softener discharge into a separate plastic waste as per Agroshield's comment.

 

[Dcal]

You can get pipes linned with fiberglass or even Kevlar.

Various ways of doing it but with the last one I saw done, a preimpreginated liner was pulled through the pipe with a clear plastic bag installed inside the liner.
A UV light source was then placed inside the plastic bag but outside the liner.
It was all sealed up and the plastic liner was inflated to get the liner to open up and fit tightly to the inside of the pipe.
The UV light was switched on and as it traveled along the pipe it cured the resin in the fiberglass liner.
Once cured everything was cleared out and the ends tidied up.

As you can imagine it won't be cheap but it is possible.

 

[OJCar]

If it is just a little hole, why not drill it to a suitable size and put a short self tapper in.
Just for now until a better solution can be worked out.