conduit and pulling string

What is the best way to get a hover to suck the string thru a conduit ? 😂🙈

or is there a better method ?

I tied some kitchen roll to one end of the string, and taped the hoover hose to the other end - worked a treat (this was through 9m of 20mm flexible conduit).

Edited by potterer (Fri 24-May-24 18:18:22)

What Potterer says .

thanks guys i will try attempt no.3 tomorrow .. 😂 🧵

or is there a better method ?

Tips that come to my mind …

That the ‘bung’ ought not to be too tight a fit.
That what it pulls behind ought to be as light as possible, string for instance, or cotton.
If the conduit allows, a ping pong ball would work well.
What else can you use which might have a bit more oomph in it ? A leaf blower ?

We used to use similar processes to get draw ropes through long lengths of pipe. A plastic bag tied on the end of the rope, and a compressor would work very well.

Curtain Wire. I bought a length off eBay and pushed it through.

If sucking, I would suggest Button Thread to a tissue, then pull through something stronger.

The "string" I used was some thin polyester cord off eBay. Blue of course!

Cheers!

its 25mm flexible corrugated conduit so about 19mm id.. Seen people on youtube use a plastic bag.

I tried yesterday with a Velcro tie and holding my hand over the nozzle and tube. It got about 2m in and stopped, also the vacuum cleaner was making a high pitched nose too.

its a comical thread but actually useful for the search engines and anyone needing to know - what not to use.

Before I retired we used to tie an 0BA nut to the string and send it on its way with a 100psi air line... got a mate with a compressor?

(Main precaution was to make sure nobody was in line with the exit- it could come out at a fair old lick )

In reply to a post by Zarjaz:

or is there a better method ?

Tips that come to my mind …

That the ‘bung’ ought not to be too tight a fit.

tight enough to cause enough negative pressure - near vacuum to cause the suck effect. But the object shouldn't damage the Vacuum cleaner.

In reply to a post by Zarjaz:

That what it pulls behind ought to be as light as possible, string for instance, or cotton.

yup so it can be pulled by the negative pressure

In reply to a post by Zarjaz:

If the conduit allows, a ping pong ball would work well.

i wonder if you can get different sized balls 🙈

In reply to a post by Zarjaz:

What else can you use which might have a bit more oomph in it ? A leaf blower ?

that would be youtube material ...... 🙈😂🧵

In reply to a post by Zarjaz:

We used to use similar processes to get draw ropes through long lengths of pipe. A plastic bag tied on the end of the rope, and a compressor would work very well.

You guys have a standardised set of equipment, that you repeatedly work with, but with a diy situation that varies.

In reply to a post by billford:

Before I retired we used to tie an 0BA nut to the string and send it on its way with a 100psi air line... got a mate with a compressor?

(Main precaution was to make sure nobody was in line with the exit- it could come out at a fair old lick )

that must have been fun doing.......... Given that i'm a walking disaster zone sometimes, a flying nut is not the best of ideas, Bill 🙈😂. I love it but i'm like i only want one disaster a month thank you..😂🙈🙈🙈