4300 Gallon Plywood Build (3600+ Take 2)

[nolapete]

That's where my build is different.

The four bottom drains are pressure fed by the force of the water wanting to escape the tank. Two pumps feed each 55 gallon drum filter which overflow back to the tank. The media in the drums will restrict the flow. I can returns from the drums by simply cutting another 3" hole and adding another Uniseal with plumbing. The coast to coast overflow also feeds into the lines going to the two pumps on either side. I'm going to build a model of the plumbing sometime this week.

 

[BadOleRoss]

Yes Pete, my drains are gravity fed at the top of the tank. Your flow will be much greater with the pressure of the water acting as a pump.

 

[larryluvfish]

OOOOOyeah!!!! ur getting close to finishing this puppy.

 

[surnimensis]

Just chiming in! I think this may have been said before but one more won't hurt, " I can't wait to see this filled " woot woot! If knowledge is king then you are the fish emporator!

 

[TheFishGuy]

I'm a bit concerned about the pressure flow... Just saying it outloud... But then again I tend to subscribe to the KISS method where gravity is king... When setting up a gravity fed system there's no such thinng as too much drainage... You've lost me on the pressure fed system LOL

 

[johndirst]

This is making me want a much LARGER tank.

 

[nolapete]

I'm a bit concerned about the pressure flow... Just saying it outloud... But then again I tend to subscribe to the KISS method where gravity is king... When setting up a gravity fed system there's no such thinng as too much drainage... You've lost me on the pressure fed system LOL

It's still gravity J, but instead of feeding into a sump the intakes feed into the pumps. It's more of a closed loop or hybrid closed loop than what you or Rich are using.

One of the best features is that I don't ever have to worry about a sump overflowing or running dry.

There will be adequate sand/grit protection ahead of the pumps with clean out traps. All that is required to clean them is opening a valve.

 

[silent1mezzo]

Wow, can't wait to see the final build. This is amazing!

 

[Arkangel77]

Pete- I understand how it wont run dry but how can you be sure it wont overflow the filter drums? Are the filter drums going to be at the same lvl as the top of the tank? Sorry if I missed this somewhere in the past.

Arkangel77

 

[nolapete]

The top of the drums are actually 8" higher than the top of the tank with the bottom of the return pipes about 1" above the tank.