DIY Drain maintenence

[David_Dublin]

Wondering if anyone here has any experience fixing drains. 1920s house, cast iron (I think, black metal) drains.

Issue with the gutters draining. Partly caused by needing a good clean, but also need to adjust so there's a flow from the closed ends, they all seem to be too level.

Some rusting too, needs to be fixed.

Anyone have experience of adjusting, repairing like this. What materials would I need. The fascia/soffit is all stone, in case that is relevant.

 

[Pinoy adventure]

A good sanding,followed by metal primer and a coat of black paint can work great.
That is after a good cleaning

 

[David_Dublin]

How about repairing actual holes or cracks at the joints? And addressing where there's not run off towards the down pipe?

 

[Pinoy adventure]

David poly filler for small holds/cracks and sand it down once hardened.
If there that bad it might be time too get them all replaced for peace of mind