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Stroppymonkey
Well-known member
Bet it wouldn’t like wet clay and stone much either …
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Brendan
Well-known member
it didnt like clay.
was using it to expose the fuel lines, may as well of used a tea spoon
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groundworker
Well-known member
Wonder how much these are - digger mounted suc exc
tinbin.de
BSB tinbin TC2 - Suction excavator - Hydrovac Replacement
tinbin TC2 Suction excavator attachment - Excavation, Municipal Work, Rail Track Construction & Maintenance, Environmental Work, Landscaping
tinbin.de
doobin
Well-known member
Do you reckon he’ll struggle to run that off his e10?Wonder how much these are - digger mounted suc exc
BSB tinbin TC2 - Suction excavator - Hydrovac Replacement
tinbin TC2 Suction excavator attachment - Excavation, Municipal Work, Rail Track Construction & Maintenance, Environmental Work, Landscaping
Looks cool though.
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groundworker
Well-known member
They definitely do one for that size machine, been around for yearsDo you reckon he’ll struggle to run that off his e10?
Looks cool though.
Attachments
pettsy
Well-known member
Maybe this self propelled one would be better?
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Stroppymonkey
Well-known member
Still think that I will pursue this avenue of making our own mini hydro excavating set up at some point. In process of building a petrol washer on a bowser that will fit on back of Dmax.. so that's the easy half of the kit sorted. Looking at gully suckers, if using for soil, then emptying it out will be the issue so it needs a door at the end. I think a skid unit on top of the tipper to facilitate emptying might work as a budget option utilising existing kit. Seen a few units for sale so they are out there. If the idea works at all then I guess the next issue is what to do with the suckout material...can't leave it on site, I suppose its only soil in theory so a U1 licence might cover it to be dropped at the farm and used to create noise bunds once dried out?
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Bucket on wheels
Well-known member
Bri963
Well-known member
Anyone tried putting posts in like that? Think I’m going to have a go next time the fence goes.
JD450A
Feral as Fk 🐾
U1 won't cover it as the material needs to be of suitable type and quality for immediate use without going through addition processes which drying would be one.
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Stroppymonkey
Well-known member
Ah - yeah forgot that bit. Same as screening and crushing is outside the U1 for hardcore I guess. Layby it is then!
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Rob65
Well-known member
How effective would a small volume very high pressure air jet be at breaking up compacted soil? I would think that as long as the extraction air rate exceeded the air jet volume by a good factor dying debris and dust would be minimal.
I’m guessing someone will have tried this but I’ve not Sean it being done.
It would make the disposal of the spoil simpler but I would guess if it was that simple it would being done.
I’m guessing someone will have tried this but I’ve not Sean it being done.
It would make the disposal of the spoil simpler but I would guess if it was that simple it would being done.
Quattromike
Well member-known
The Vac excavators seems to becoming more popular you just suck the hole out, and have a high pressure lance to help break it up a bit
Bri963
Well-known member
Problem I see is backfilling after either air or water jetting. To me, air jetting would be a non starter unless it’s very dry and sandy, and water is just going to produce slurry, which wouldn’t be a problem if you’ve got somewhere to heap it while it dries.
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Smiffy
Well-known member
Watch some of the videos of the big vacuum excavators it seems they carry both an air lance and water get plus the vacuum hose rotates to help exaction. I can only assume from the videos that the air lance is seriously high-pressure to be as effective as they are
Bri963
Well-known member
Must be some pressure to be sure. I was more thinking out loud about those two videos, and working on a smaller scale. Still think it’s worth a try for post holes.
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Stroppymonkey
Well-known member
Yeah we discussed this a bit higher on this thread. Needs lots of air and very messy by all accounts. Hydro sounds better for clay soils and less messy. I’ve got an air powered sludge vac on 2” hose so might have a play with that at digging a couple pits along with a powerful petrol washer ..
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Steve
Well-known member
I looked into this sometime ago and concluded it would only work if someone was prepared to pay me a lot more for using it than if it was dug manually ie for safety reasons.
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Stroppymonkey
Well-known member
I guess it might work for us as we tend to only be trying to do occasional small pits in difficult spots with lots of other services around to locate and repair/adapt a water/LPG/oil service. If it was easy to dig out then plenty around with 1.5t machines and transits who work for £200 a day notes that will get the job before us. Also - its getting harder and harder to find people who are happy to shovel out muddy holes with hand tools! (myself included). I am sure I could lose a cube of soil slurry without any great cost or harm to the environment. Sounds like a project for next winter once I have got my shed project properly underway.
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fred
Well-known member
we made up one of these cyclone units to sit between our hepa site dust exteractor (dewalt) and the tool, it sits ontop of a 55 gal drum but could mount onto anything really. only the very finest dust makes it past it to the actual vac bag.
Could you make something a lot larger and bolt it to a skip or something to discharge into ? Just need a powerfullish vac to go with the spade and then jet washer to cut and feed it ?
Wouldn't cost a lot ? mega handy for needling/ no access areas etc.
Could you make something a lot larger and bolt it to a skip or something to discharge into ? Just need a powerfullish vac to go with the spade and then jet washer to cut and feed it ?
Wouldn't cost a lot ? mega handy for needling/ no access areas etc.
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