Pressurised filtering of WVO

[Rotary-Motion]

What exactly are you doing GM?

Nige

I bought one of these pumps.
http://www.ebay.co.uk/itm/SAER-KF-1-3-BAR-HOME-BOOSTER-GARDEN-HOUSE-WATER-PUMP-240V-/271070282186?pt=UK_DIY_Materials_Plumbing_MJ&hash=item3f1d0c41ca#ht_810wt_885

crikey thats a nice pump, just like a tam for 25 notes, nice find

There was a dose of them. The ebay advert was put up on, um, another forum.............
Stock clearance, by the colour and smell, they could be ex MOD.

bang tidy - and oh yes "the site with no name"  it was all a dream then  i woke up...

[greasemonkey]

[greasemonkey]

yo GM

what filter inserts you useing? melt blown or spun wound? this weather you will find after many uses they block and will reach the 0.8 kieth mentions quickly, can help aid this by adding more filter a 80/50 wshable with j-cloth then 20/10/1 say, basically where im at, and before this 2 times bed sheet filter, you would be surprised what the second sheet catches.

they pump well on first few uses but after oil is in them and you get the night freeze it thickens them up

all this is depended on oil you get and how long you settle after your first bed sheet filter before pumping stage though.

I'm not really sure if they are melt blow or spun wound, Which one is best?
I have wrapped them in J cloths, so that should help a bit. I'll do something better with the bedsheets shortly, just had to get the thing going as soon as I could.

I won't have much liquid oil soon anyway, so am ultimately looking at heating lard to filter, then doing something towards a heated fuel tank. A lot of the whites i get turn into oil if its warm enough anyway. The truck doesn't seem to mind burning it.
Cheers RM

[Julian]

A wiki page on filter housings and element types, with pros and cons of each would be a useful addition.

[Rotary-Motion]

nice cone bottom on the bench there, was that your welding?

melt blown are pretty flat and feel plasticky and spun wound looks like a ball of string and fluffy

i use spun wound as last longer, but i ran out so chucking in melt blown, ive done 2 pump outs and there blocking already and above 0.8 infact there about 1.0 / and second from last is hardly registering which is odd on gauge, could mean 2 things, one oil is bypassing and not seated correct or the 3rd in row takes the shizz out really well but blocks faster...

that is prolly well confusing, whats written above but. i think get the right combination of micron and you would benefit and me with melt blown... but if your thinking melt blown think higher micron like i have 4 in a row so say 100m/50m/25m/1m and this might work very well indeed, and not worrying on the 0.8 mentioned on first 3 filters only worry about the 0.8 blow by on last 1m filter...

the above i would like to try out... sometime

but the ol spun wound last longer with lower microns i been useing of 80/20/10/1

so to cap it off they both could be ok hard to tell without further testing....

so what im trying to say is a 25m melt blown could be the same filtering as a 10m spun wound as the melt blown could be more efficent?

[greasemonkey]

The elements are melt blown then. Smooth finish. I figure if the first filter is seeing no more than 0.8 bar, then the next one must be the same of less, so no chance of pushing bigger bits through.

My welding. What you cant see is the tiger seal on the inside..........
I think it was .8 sheet, and I didn't realise at the time that the mig wire was 1 or 1.2 mm. Swine of a job. Next time I will get my own roll of thinner mig wire.

Once I've sussed out exactly how I want the setup, and got it running somewhere near, and all in the right position in the shed, then I can overcome any problems, and build it all up tidy.

[Rotary-Motion]

yeah its very much a suck it and see situe and what suits you best individually or what works, no set rules only filter and dewater to best you possibly can, do you dewater?

[greasemonkey]

I add petrol and let it settle, after filtering. Depending on the WVO, I get a cup full of clear water, then some gunk, out of 40 or so litres, sometimes I get only a tiny dribble of what looks like emulsion.
Not got a fantastic electric suply, and its not really my supply, so heating with electric is a bit of a problem. Photoman style waste engine oil heater is planned soon.......

[Rotary-Motion]

yes was goona say try thr petrol route it does seem a very very good option as it strips the crap out really well, from what i read... just the thought of petrol and pumps and how fricken dangerous it is, thats a worry.

had a bad situe when i was a kid and someone got very hurt, it haunts me...

[greasemonkey]

I put the petrol in after its filtered. I guess if its indoors, then the settlement tank should be vented to the atmosphere, rather than into the shed. Fine in this weather, but could be a bit of vapour about when its really hot.