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screen printing => Equipment => Topic started by: ericheartsu on July 11, 2013, 02:23:00 PM
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I've been having some back ups in my plumbing lately, and today i decided to open up my pvc pipe to see what was going on.
I had all sorts of gunk (i'm assuming mixtures of ink, sponges, emulsion, even tape bits) in there. I'm wondering if any of you filter your out going plumbing from your washout booth, and if you could tell me how to do it!
thanks!
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Maybe this will help
http://www.screenprintingguy.com/wash-out-booth-and-water-filter/ (http://www.screenprintingguy.com/wash-out-booth-and-water-filter/)
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Maybe this will help
[url]http://www.screenprintingguy.com/wash-out-booth-and-water-filter/[/url] ([url]http://www.screenprintingguy.com/wash-out-booth-and-water-filter/[/url])
This looks fantastic. going to try and build this this weekend!
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We have one of these.
http://www.zurn.com/Pages/ProductDetails.aspx?NodeKey=375989 (http://www.zurn.com/Pages/ProductDetails.aspx?NodeKey=375989)
Mark
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There's been at least one other thread on this subject where different solutions were discussed. I posted that I stuffed some washable furnace filter material in the drains of my sink. It'll filter out most of the crud and mung that'll clog your pipes. Here's the real deal in action. This is from reclaiming about 6 screens that had Murakami HVP emulsion on them.
I cut up a bunch at a time and keep 'em in a bag hanging over the toilet. As soon as the sink starts backing up too bad, just pull them out and stuff in a couple of new ones.
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Mark, you're a pretty big shop, how many screens a day
and how often do you change filter media?
Thx
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In Australia we are required to have a settlement tank in the line before anything goes down the drain. We then need to empty out the tank twice a year and get rid of the many gallons of gunk in the bottom. My washout is next to the dark room upstairs and the tank downstairs, I find that I need to change the poly pipe from the bay to the tank every 5 years or so as the emulsion will eventually block it.
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There's been at least one other thread on this subject where different solutions were discussed. I posted that I stuffed some washable furnace filter material in the drains of my sink. It'll filter out most of the crud and mung that'll clog your pipes. Here's the real deal in action. This is from reclaiming about 6 screens that had Murakami HVP emulsion on them.
I cut up a bunch at a time and keep 'em in a bag hanging over the toilet. As soon as the sink starts backing up too bad, just pull them out and stuff in a couple of new ones.
where can you get this stuff?
And you just scrunch it up and put it in your drains? i asssume you clean it out after screen you reclaim?
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It comes in a sheet, about an inch and a half thick and about 2 feet square, at Home Depot or Lowes. It's sold as washable furnace filter media. Comes in a plastic wrapper. Get it where your regular AC filters are. All I've seen is blue.
I cut strips out the width of the drain, then cut off squares, then cut the corners off to kind of round it out. You don't really stuff it in too tight. It'll let water pass easily, but over the course of a couple of dozen screens that don't shed the gooey balls of emulsion like you see in the picture, the drain will start to back up. Just pull the crap out and put new pieces in. I can't say that the wastewater that gets through doesn't have enough emulsion suspended in it to maybe build up over time, but the fact that this stuff does start to clog as quickly as it does, even with emulsion that melts off in the water, tells me that it's reasonably efficient, and it's cheap and easy.
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we've been using this pushed down into the drain...when it gets clogged you can kinda just blow it out from the backside...lowes, 3 pack...the big one doesnt fit but the smaller two do.
(http://www.lulusoso.com/upload/20120310/stainless_steel_ground_floor_sink_wire_mesh.jpg)
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we've been using this pushed down into the drain...when it gets clogged you can kinda just blow it out from the backside...lowes, 3 pack...the big one doesnt fit but the smaller two do.
([url]http://www.lulusoso.com/upload/20120310/stainless_steel_ground_floor_sink_wire_mesh.jpg[/url])
I thought for a moment that you were about to make a cake then bake it in the dryer oops :o just kidding
good washout sink idea girl.
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well here is something we get from our dip tank about every 6 months or so.
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We use one of these: http://www.ccidom.com/products.php?product=SFS%252d100-WATER-FILTRATION- (http://www.ccidom.com/products.php?product=SFS%252d100-WATER-FILTRATION-)
Changing the media is a pain, but we've never had to roto-rooter the pipes in 6 years.
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A settling tank will surprise you in how much gunk it takes out. Very easy to implement and only requires
periodic maintenance.
Without something to catch the real big stuff first, on any filter type setup you'll be changing/cleaning the media
constantly.
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The filter is plastic and have replaced that only once in a couple years. Everyday we take the top off, pull the filter out and clean. Picture attached.
We do around 80-120 per day.
Mark
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just had this made by a local millwright/fab shop , for some tees :)
Basically a 3 chamber box with drain at one end with tray on top to catch crud.
We used tees in the tray for the first week and it caught a ton of sludge , now trying a 1/2" inch filter fabric with a layer of felt under.
Bio diesel guys use a felt with different micron ratings I am going to order some an give it a try.
This one is approx 30" x 21" and when I calculated the numbers it holds about 107litres 29 gallons
Seems to work very well and just a faint pink coloured water comes out at the end.
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We have a settling tank home built that captures a ton load of solids. the feed line to that tank is about 60 foot run of 1 1/2 inch pvc with a positive down slope over the entire length. After about 5 years were are still collecting tons in the tank and the pipe is so far flowing well.
the only PITA we have is the tape and emulsion solids covering over the drain strainer in the bottom of the wash out booth. Seems we are cleaning this off all the time to just get the water out of the booth.
mooseman