Mutton
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Making water filter from dishwasher bits - anyone?We want to build a filter for the rainwater to catch all the silt before it goes into our new rain butt. We know there is silt - the water currently goes into an old bath and the silt builds up in the bottom.
When OH started describing components for filter - metal mesh sheet and then sieves, I had a brain wave (I hope) and said we can use all the bits from the dead dishwasher filter system.
By any chance has anyone ever done this?
How well did it work?
Any drawings and tips?
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RichardW
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A few ways to do this.
1, multi stage filtration
2, centrifugal seperation
3, settlement.
1, will need cleaning often especially the first & last screen that will be quite fine
2, hard to get right but very effective & self cleaning
3, needs manual intervention
But no direct advice on using a dishwasher as a donor sorry.
Is a bit of silt in the tank a problem?
Even clean rain water will soon have "stuff" growing & living in it.
Fit the tap slightly up from the bottom & fit a flushing tap lower down to empty it occasionally.
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Nick
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Our house water is filtered through an (unused) pair of maternity tights. That stops pretty much anything silty getting through.
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Mutton
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The tank in question is the sealed oil tank I'm asking questions about in a different thread on here.
Not very easy to fit taps to for flushing, wanted to avoid gunge to start with. Do know that things will grow, it is just that we get actual brown silt from stuff washing off the roof, out of the gutters etc. Maybe we would get less if we remembered to climb up and clean the gutters regularly, but we're not like that. 
Maternity tights - remember my mother using old nylon stockings back in 1970s to filter the lumpy bits from old part-used tins of gloss paint before using them.
Are maternity tights tougher than the ordinary sort?
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Nick
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No idea. It's just what we had lying about. Previous filter, when we removed it turned out to be a nylon, Ann Summer bit of frill. Worked, but made my MIL splutter when we pointed out her tea had been filtered through an unnamed floozy's gusset first.
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