Outside waste pipe replacement cost

stuart45

Aluminium Oxide paper. The back of the pipes next to the wall are usually the most rusty. I'd wear some tough gloves sanding that bit, being next to Pebble dash. Use oil based primer and oil based gloss. 

Section62

stuart45 said:

Aluminium Oxide paper. The back of the pipes next to the wall are usually the most rusty. I'd wear some tough gloves sanding that bit, being next to Pebble dash. Use oil based primer and oil based gloss. 

Also cut off the cable ties holding the cable(s) to the pipe and move them out of the way - trying to sand/paint the pipe with cables attached will be harder work and give a less good finish.

Budget for a few cable ties to clip the cable back to the pipe when the painting is done.

FreeBear

Wire brush and Hammerite would be my choice.

stuart45

The wire brush is good for the rust at the front, but a roll of oxide paper is better for the back if you can slide a long piece between the pipe and wall. Using both hands on each end of the paper to pull back and forward will clean up the pipe quickly.

ThisIsWeird

Perfect job for a local handyperson. 
I'd finish it in matt or satin black, rather than gloss.
I think it would not only look better - it'll more resemble the cast iron that it is - but it'll also help hide the remaining blemishes.
Not sure of the best paint to use, tho'. I guess a wee tin of zinc primer for all the exposed bits, followed by something like Bedec Barn Paint?
It should look great, and much nicer than plastic.

stuart45

I'd prefer to use an oil based Hammerite rather than a water based Barn paint.
Even with Hammerite a lot of pro painters still use a red oxide primer on the bare metal bits, even though it's said to be a straight on rust paint.

TELLIT01

If the OP is doing the repainting more for cosmetic effect than to prevent further rusting, the part of the pipe adjacent the wall may not be a priority.

stuart45

TELLIT01 said:

If the OP is doing the repainting more for cosmetic effect than to prevent further rusting, the part of the pipe adjacent the wall may not be a priority.

For cosmetics, that part of the pipe is often neglected That's the reason why it's normally that part of the pipe that rots out and leaks. For the bit of extra work involved it's worth doing the job properly. 

Eldi_Dos

@sanova76.
Replacing that cast iron pipe with a plastic one may detract from the appearance and value of your property. If you do not feel confident to do the work any competent handyman will sort that out for you, and will be considerably cheaper than replacing pipe.

Mr.Generous

It would cost about £20 to replace that with a hopper, downpipe and clips in black plastic. If someone can do the job for you that would be it. If you've got to pay labour at least you know how much of the quote is labour. For me replacing it would be less work than painting, and new plastic looks good.