Cool stuff i dont really know how it works but some filter housing back wash via a simple tap like this.
A friend tried to explain to me once it but it seemed gobbidygook.
That something this simple would work.
http://h2oshoponline.com.au/image/ca...01-500x500.jpg
he claimed just opening the tap back washs the filter.
I would say it doesn't but if it was rigged with a few taps to reverse the flow diection it could.
We are on a bore typical for my area its full of iron while i know how to make a simple aerator isand filter with a shower nozzle and base for the filter and corrugated pipe to increase the aeration.
but i have resisted as i dont want to pump the water twice and i could never find a suitable simple auto backwash.
Why thoughts on a backwash ideally it would work on say tee off chocked down with jet triggering so it took say 0.05% water to fill a toilet cystein so it would somehow operate say every 1000 liters.
but i could never figure how they get them to auto flush.
My other thoughts were to simplify the old shower base filters and just just a pool sand filter. and maybe use a compressor air injection pre sand filter but i couldnt then figure out how to get the air out properly unless i just could get away with feeding it into a sealed
reservoir?
So any ideas would be greatly appreciated.
EDIT
i get your one you just reversed the mains flow.
We had wood chips end up in our pipes after some renos it took ages and was blocking the upstairs shower quite regularly.
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