installing down pipes

[Fredstudio]

Thanks, How do you plumb up from the gully though. With the plumb line need to be held from above.

We mark a plum line on the wall from the centre of the gully up to just shy of the soffit.

You can then use this line to measure the drill holes for the down pipe.

The line is usually a feint scratch using the edge of a bolster chisel or similar. Or if the masonry is smooth use a light pencil line.

We have used the laser also but it needs to be dull or fading light.

Use a 1200mm spirit level.

So you don't use a plumb line to do the level line you use a spirt level?

 

[noseall]

Or a laser.
Use anything you want as long as it is makes a vertical line.
Sometimes when we are fitting a d.p. near a corner, we simply measure off the brickwork.

 

[Fallout]

Do you push the pipe all the way in to the fitting or do you leave it out a few mm for expansion?

 

[noseall]

Do you push the pipe all the way in to the fitting or do you leave it out a few mm for expansion?

All the way. Self drilling screws are useful for securing the offsets when assembling the swan-necks.

 

[Fallout]

Its cast iron effect downpipes I'm putting up. Were the clips are on the sockets. So they can only be clipped were you join the pipes? Seems a fair distance between clips.

 

[Fallout]

What kind of fitting do I need to connect from the 4inch plastic drain pipe to connect to the downpipe?

 

[noseall]

What kind of fitting do I need to connect from the 4inch plastic drain pipe to connect to the downpipe?

Use a rainwater adaptor or sleeve. There are soft rubber universal adaptors available specifically for this job.
I take it we are talking at the bottom of the d/p and not at the running outlet?

 

[HERTS P&D]

FFS call someone in to do it for you!!!

Andy

 

[cannonfoder]

by placing the down pipe in place then a small self tapping screw in the side to hold it or some glue an activator then pop the clips on the pipe they will stay where you putthem.
then a 6ft level on pipe mark holes then drill plug and screw working your day down the pipe it works iv done this many times and still do.

 

[noseall]

.....then a 6ft level on pipe mark holes then drill plug and screw working your day down the pipe it works iv done this many times and still do.

That's fine as long as the d/p is not bent and a lot of them are, particularly the round section d/p. A bent pipe and a short level can yield poor results. Not everyone owns a six foot level!

If you have a scribed centre line on the wall then you can use this line to mark your drill holes each side.

What we do is pop a clip onto a down pipe, squeeze the clip slightly so that it is gripping the pipe.

We then measure the distance between the screw holes on the squeezed clip. We then take this measurement to the centre line and mark out the clip drill holes, evenly marking each side of the line.

You can pre drill all your holes then assemble the d/p. Also the d/p will be secure because of the grip from the d/p brackets because of the squeezy-squeeze method.

 

[Mw Roofline]

You think this is bad about a downpipe, you wait till he puts on a new roof!