Thread: Emptying a

Arron,
I carefully disconnect mine than slide it onto a hand trolley (one of those ones that delivery drivers use). I then wheel it into the garden and use it for mulch. If you cna't use it on the garden maybe you could get some jumbo plastic bags that you can slip over the top of the bag and then tip it upside down (outside of course to keep the dust out of the work area.

Mick

First tip is to spend some money on a proper filter to replace the top bag, then you can use heavy plastic bags for the bottom.

The heavy bags do cost a few dollars and I hate to waste them, so I slip a wheelie bin liner into an empty wheelie bin, toss the DC bag into the bin upside down, then slide it off.

Stand on the bin liner to compress the sawdust, and you'll find that you have a wheelie bin exactly 2/3 full.

Now you just have to go easy on household refuse for the rest of the week!

Cheers,

P

I used to line the lower bag with a pull tie bin liner but now use a dump bin so most never gets to the bag to start with.



Ross

Well, first off, I built a Cyclone DC....... problem solved.

Different's idea sounds good KIS!.

Originally Posted by Wayne Davy

Well, first off, I built a Cyclone DC....... problem solved.

Glad you're back Wayne, I'm about to fire up the ducted system!!

Well no I'm not, but I'm about to start work on it again, and might need help!!!

Cheers,

P

On my portable dusty I've replaced the bottom bag with a black 56L? rubbish bag. When almost to the top, I unclip it, tie the top closed and put it out. No mess at all. The portable dusty is a genuine german Elecktra Beckham, not the latest chinese lookalike Elecktras, and it is quite happy with only the top bag as a filter.

My shed is piped with 150 mm pvc storm water pipe and fittings, 100 mm connections to machines, has a 210 L plastic drum as a dump bin, then my 2 hp cyclone with a 75L opaque virgin plastic dustbin from Bunnies. Hardly anything gets to the opaque dustbin as the dump bin with 150 mm in and outlets seem to get most the chips etc. No filter on the outlet of the cyclone as no dust is visible in the air from it. The outlet is about 45 cm above ground level and even the grass etc around has no signs of dust being deposited. Designed it according to Bill Pentz's specs and works well.

Am I right in assuming a 'dump bin' is a rubbish bin acting as a separator before the stuff even gets to the dust extractor. If so, should the dump bin be before the impeller, or between the impeller and the bags. I'm thinking that if I want to line the dump bin with a bin liner then I should put it after the impeller or else the bin liner will simply be sucked along. If put after the impeller, then the air is being blown not sucked and thus should force the liner against the side of the bag. Is this correct or nonsense ? Can you use a liner in a dump bin before the impeller ?

Mick, how much sawdust much can you put on the garden before it starts to have a negative effect ?

thanks
Arron

Here in Tassie we can get fish food bags which are around twice the size of a wool pack.....they have ties both top and bottom so it is east to tie around the duct and when full retie the bag and roll it straight onto the trailer which holds two bags so no rude interuptions when in the middle of the job.....out here a sugar bag is ok for the filter to let more air out.....

Reguaeds Tasman

Originally Posted by bitingmidge

Glad you're back Wayne, I'm about to fire up the ducted system!!

Well no I'm not, but I'm about to start work on it again, and might need help!!!

Cheers,

P

Havent you finished that thing YET!?!?!? (I have been watching - I like to watch - hehehe)

Originally Posted by Arron

.........Mick, how much sawdust much can you put on the garden before it starts to have a negative effect ?

thanks
Arron

Arron,
I guess it depends, we're on half an acre in the wet tropics and everything happens a lot faster than in colder climes (say Brisbane or further south). I just hacked down some 2+M high guinea grass that sprang up next to my shed and covered my windows in the last fortnight. With all the rain and heat the 4 bag fulls that I dumped under the Lychee tree in the last 3 months is already half broken down, certainly hasn't stopped the grass growing. At my last place I was dumping it all around the passionfruit vines on the fence next to my shed. Now apparently too much sawdust will deplete nitrogen from the soil, but my passionfruit vine had healthy vigorous foliage (= plenty of nitrogen) but hardly bore any fruit (= heaps of nitrogen but not enough other nutrients.) If it doesn't break down fast enough and nitrogen is in short supply apparently you just need to mix a bit of blood and bone intothe sawdust.

Green thumb Mick

Originally Posted by Arron

Am I right in assuming a 'dump bin' is a rubbish bin acting as a separator before the stuff even gets to the dust extractor. If so, should the dump bin be before the impeller, or between the impeller and the bags. I'm thinking that if I want to line the dump bin with a bin liner then I should put it after the impeller or else the bin liner will simply be sucked along. If put after the impeller, then the air is being blown not sucked and thus should force the liner against the side of the bag. Is this correct or nonsense ? Can you use a liner in a dump bin before the impeller ?

Mick, how much sawdust much can you put on the garden before it starts to have a negative effect ?

thanks
Arron

Arron,

Dump bin usually go between the machine and the dusty and must be airtight with the input and output pipes somehow through the lid. There are some pics of them in the cyclone threads. They catch the bulk of the chips and also protect the impeller of the dusty against solid blocks and other debri damaging it. It also keeps the bottom bag from filling up quickly and the top filter bag from getting blocked with chips etc. Normally it has no bag, but if correctly constructed and airtight, there is no reason why a bag cannot be spread open inside and the open end clamped by the lid. If the setup is airtight, the bag will not suck in, as no air can fill the void that will form between the bag and the bin. God help you if the bin springs a leak tho, because you'll feed the total bin contents ( in the bag ) into your dusty.

Search for cyclones on here and enjoy 6 1/2 years worth of reading!

It doesn't matter what machine or receptical you use some time you gota empty it.
Unless you want to use disposable bags the problem still remains.

The secret is to do it gently and quietly.
Pooring rather than dumping, therfore raising as little dust as possible.

Emptying the lower bag into a bin liner is easy.
For minimum spill try this.
Fire up the dusty to full speed & turn it off. while its running down give the upper bag a couple of good whacks with a stick and walk away for 5 min.
Come back give the now flacid upper bag a little shake and disconnect it.
sweep any dust sitting in the metal drum thingy in the middle into the bottom bag.
Now unhhok the bag & remove the clamping band or strap carefully drag the bag to somewher convienient.
Take a binliner large enough (Bigger is better) and slip it over the lower bag as it stands up. All the way over.
Turn the whole shebang over.
Pull the binliner fully upright.
Now carefully jiggle the lower bag out by its bottom. Being especially carefull when the bag is about to come free.
You should be able to get the lot into the liner without spilling much at all.
There will be a sort of suction effect between the bags that helps keep the dust in. But it will be a problem if you try to work too quick.

The same method works for rigid containers like shop vacs & the like.

cheers

Originally Posted by Wayne Davy

Havent you finished that thing YET!?!?!? (I have been watching - I like to watch - hehehe)

Nah, got too busy building the Yo-Yo.

P