540 filtration opinions

  • We are currently upgrading MFK. thanks! -neo
How did u run your pipe into the 55's DB? Just silicone them in place?

3" bulkhead fittings...... Silicone on the male threads of the pieces that screw into both sides of the bulkhead fittings.
 
What size air pump are u running to float your k1 DB?

Pondmaster AP100. Big fan of these pumps. I have 3 of them here. Unfortunately they need rebuilt every year cause the diaphragms tear but rebuild kits are like 10$ and a half hour to do. Price you have to pay to get specs of a $500-600 air pump for well under $200.

On my big system the reactor is a 90 gallon aquarium which has 3 of the 10" black rubber diffusers mounted into the bottom of the tank. Pluming goes through he bottom of the tank to 3 valves to control air to the diffusers. I tried running the whole system with a single AP100 but now use a coral life luft pump to run the tanks diffusers then just run the whole AP 100 on the reactor. Seems once you add bio chips to K1 it gets a little difficult to keep a good boil going, it takes a decent amount of air.
 
I put the fitting as low in the 55 as I could. There's a 90 in the middle of the drum then the standpipe goes up like 2/3 of the way....

Have you decided on what to use for the inner cylinder of the RFS?
 
I'd personally use single 3" going in..... Easier to center and would think it less turbulant.

I could see where the outer container being cone shaped could help, but not sure if I understand where a cone shape would be beneficial on the inside cylinder? Can you explain in a little more detail?
 
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