After a long researched, I finally decided to make a micro strainer. Got this idea in another koi forum
Size is 260mm in diameter and 300mm in height. This will go in my settlement hoping it will reduce my maintenace a lot more
Purpose of this strainer is to stop the micron waste going into prefilter. If this thing works, I will convert my prefilter to another bio unit
This unit will suit a blue drum filter or even a square chamber. The unit will rotate by vortex effect and also with the aid of the backwash system. So its a self cleaning unit
More on the backwash later Materials for strainer:
1 x 8L bucket with a snap on lid, 1 x S/S 280 micron screen, silicon, expandable foam and a piece of 10cm pipe as sleve.Materilas for Backwash unit: (Will get later on)
20mm pipe, some elbows and a tee and a 3000Lph pump.
* 1st pic shows the rim of the bucket is being cut by a hack saw. This will be the top part of the unit. You'll see what I mean later on
I actualy cut the lip off the bucket ealier, this will secure the screen to the bottom part of the unit
* 2nd pic shows the lid of the bucket, will be used now as the bottom part of the unit. Centre hole will be cut to fit a modified 100mm pipe
* 3rd pic shows the 100mm sleeve which was heated up to stretch to 110mm diameter for clearance to slide easy to my 100mm trasfer pipe.This will also help to float according to the pond water level.