3yrs and finally 300G full

MFK2009

Jack Dempsey
MFK Member
Dec 13, 2009
26
4
33
Manitoba
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This was a winter project over last three years to see, an learn about building and running such a large tank setup.

It is nice to get water in it and see it all flow in and out, pump and filter seem to be working 100 % and really impressed
with that big surface skimmer its working very well.

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coyote6183

Feeder Fish
MFK Member
Nov 12, 2011
95
5
8
texas
where did you get the fittings that go through the plywood? i've been looking for something long enough to go through it all seems like standard size bulkheads dont have enough thread
 

MFK2009

Jack Dempsey
MFK Member
Dec 13, 2009
26
4
33
Manitoba
Ones I have were made by these folks
http://www.winnipegplastics.com/bulkhead-fittings
used 1 1/2 size which only allows half threads to be inside nut. But you only tighten it down 1/4 to 1/2 turn. Which for me was 1/4 by hand and another 1/4 with wrench which made it very tight. Each Thread is about 1/16 wide so very strong, and nut moves fair distance in short period of turning, its not a fine thread.

To have majority to full set of threads outside tank I would say would have to have the 2" size bulkhead

Then for extra safety I put LR around inside over foam washer (foam washer is like 1/4" thick and it compressed to about 1/8 when tightened down) this filled area between tank wall and bulkhead flange with LR, as I will never be taking it apart. In hind site could probably eliminate the washer (since LR coated around its edges anyway) or get a thinner one which would give a full set of threads on outside tank wall. On outside wall I made a thin plastic washer cut out of top of Plastic Margarine container and put between tank and nut, so that nut would turn easy on LR surface to tighten or loosen it. I drilled bulkhead holes after tank was all coated with LR.

I'm glad went with the bulkheads, originally was just going to pump water over side of tank, but this was a lot cleaner and simpler to plumb.
 

MFK2009

Jack Dempsey
MFK Member
Dec 13, 2009
26
4
33
Manitoba
Recently shut down my Aquarium as had to move it out of my Garage to make room for other changes.
So thought would post some video I came across while cleaning things up.

Changed some things as time went on, such as from internal pump to external which worked much better and easier to manage.

As well disposed of my big internal pond filters on intake to ( 3 ) screened intakes under water,
the internals just held to much crud and that was still in tank, thought better to get crud out of tank not keep it there. Ran for almost 8 years with no troubles, nothing bent out of shape, no leaks, liquid rubber worked very well (when tank drained looked same as when painted on), Ultima Filter worked well, plumbing system allowed fast water changes (too fast), always had good water.Only thing wanted was way to have water go into tank faster which would need a 1-1/2 water line from my well direct to tank to be able to add as fast as could remove water. (Had to, fill tank to brim, do Ultima Backwash/Rinse in a 2-3 minute stages to allow water refill to keep up. Not a perfect solution but worked for me)
Only thing would have change on build is to not run window sealer(Eternabond) right to edge of window edge on exterior as is squished out a bit over time and is hard to clean off as so sticky.
Now on to new projects.

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