On 3/2/2017 7:21 AM, harry wrote:
On Saturday, 24 January 2009 13:48:21 UTC, Dean wrote:
I need to remove two old water tanks from the loft. One redundant one up
there was bad enough, but now we have a new plastic replacement so there's
two of them up there doing nothing.

They won't fit through the loft hatch. What is the best way to cut them up?
I don't fancy doing it with a hack saw! I have a 9" grinder with some thin
metal cutting disks. I also have a cheap jigsaw and some metal blades (I
think).

I'm guessing the grinder is easiest and fastest. How safe is it to cut up
the tanks with an electric grinder in the loft space (sparks)? Is it viable
to cut it up with a jigsaw?

Any advice very much appreciated. Thanks.


It's possible to hire a "nibbler" that cuts sheet metal. Eg:-
https://www.boschtools.com/us/en/bos...blers-23499-c/

Check it will cut your tank thickness.

Quick and easy to use.
No sparks.

Your old galvanised tanks were made from sheet on angle iron. So you are
going to hacksaw (twice) through something like 20 mm angle, 4 mm thick,
to give the nibbler access to the sheet. Or you stick a mask on and bang
through it all with an angle grinder.

I'm not sure I would want to use a 9 inch grinder with thin disks,
though, but I would be happy with a small one.

A decent jigsaw would do it as well, as would an Evolution circular saw
with the "all materials" blade. One of these wouldn't be much more
expensive than a hiring a nibbler, unless you actually live next door to
a hire shop.

http://www.ebay.co.uk/itm/Evolution-...AOSwTuJYtZq 7

One of my lads was recently cutting up sheeting from a shipping
container using a fairly good jigsaw. It wasn't fast (or accurate). I'd
told him several times to use the Evolution, but he didn't believe me. I
had to demonstrate, eventually.