Thread: vortex size
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Old 11-06-2004   #58 (permalink)
Vogata
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Join Date: Jul 2004
Location: Sarpsborg - Norway
Posts: 149
Hello Bill

Was where you where looking eight years ago. Can’t deny it did work in a way. The real downside was for us cleaning and YAAH daddy did clean al lot. In the summer time we have at worst close to 20 hours off sun (if just the temperature could match but IT don’t).



At that time we bought stuff for Nishikigoi and by an accident we discovered another Kichi close by. The “gang” from then has been a multitalented artist and a simple engineer. At that point we decided not to trust the things we didn’t understand and started making them so we could understand them and test them.



We can’t understand that there is any way around mechanical filtration. The ones we understood where expensive and power consuming. AS the small one we reefer to that in fact combine bout quest and utilise gravity by acceleration combined with back flushing at differentials pressure. Back flushing is often by tap water (minimum 6-7 bar) or by its own pressure pump. If the things sometimes claimed where fully described at least one off us here would be out off a job.

These units are just magnificent. Downside is cost (purchase, maintenance and running). They also require that the owner posses some technical insight.



Not to advertise but we did by the answer which from at technical point should have some potential. We have had to sets up and running for a year now. No problems and the report off damage one the mechanical parts we have heard must bee do to handling. The next one or our test set-ups now is the solution. If the mechanical handcraft is up to standard and they are one advertising spot on the microns it should also be nice with added benefit on power consumption.

If you feel that these are expensive please don’t look for the small footprint vortex.



Back to the “vortex” discussed. We found that the surface we wanted was easiest obtained with glass fibre and a really nice gelcoat finish. The walls are all falling towards drain. Distance between drain and inlet is related to inlet speed, as is the distance to outlet.

Outlet should not be located in the area where you wish to take out solids. Water out should be drawn equally from all sides off the “vortex action”. The aim is to force inlet water to go the long way around the walls for as long as possible.

After reading this it boils downs to speed-diameter-height and location off disturbance.



Good luck we are one our way and hopefully we will bee satisfied with the last prototype but you never know.
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