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Hello everyone, this is Patrick Sullivan In this tutroial,
I'll be covering my own modification
of the CHOP 2 system, what is known as the CHOP 2 system
or the 'Center-Height One-Pump' system
it was initially created by a aquaponics enthusiast
a well-known aquaponics enthusiast named Murray Hallam
if you look him up on Google
that's M-U-R-R-A-Y H-A-L-L-A-M
he has
various works and been involved
and very active in aquaponics throughout the years
and one particular activity being
his creation in
and modification of the Center-Height One-Pump system, and also the
Center-Height One-Pump system 2
the second version of it, which is what this
tutorial will be showing, and, you know, my system is based off of here
Alright, as soon as I get these two valves on
I'll have the system up and running, and we'll get to
as much as detail as possible while cutting out
a lot of the unnecessary waiting time
so I'm going to get these on
Alright, so now that those valves are on, it's really just waiting to see
when there's going to be enough buildup
[around] the pipe; the bell siphon
and it creates a pressure difference
from the outside-in
so it will take a little bit of time
and I'll be back on once we're ready to get a take on that
as you all most likely can tell
it's got a lot closer to that line where it's about to
create that pressure difference that sets off the siphon action
the other thing that most of you probably pointed out with this system is
see how it's only
giving so much pressure out in PSI out at a time
but it wasn't enough water in the system
and when I was running it last night as I did
some of it probably escaped (and/or evaporated) and I turned it off this morning
you know, that caused somewhat of an escape in water pressure
so I'm going to need to put a little bit more
maybe a gallon more in Alright, so as you can tell
the bell siphon was able to activate that drainage activity powerfully enough
to get that water down to about
zero in the media grow bed
However, it has remained at that point
for a far longer period of time than it should have
it actually should have already been pulling the water up
long before this point
this leads me to the conclusion that I made my slits
one you can see right down there on the bell siphon
and then there's another one on the other side I made those slits TOO LARGE for
any activity to end up yielding
until the water ended up pulling back up to the level that
creates that pressure difference when it drains [back] down
you see, what should have happened is
if I made slits going across (horizontal on bell siphon) and NOT touching the bottom of that bulkhead
it would have been a lot more aerodynamic of a flow
and a lot more sense to run-and-drain it However,
the size of that will keep
you know, everything will the size of the slit
well, the one you see here [over the] current stand pipe
of this current bell siphon it triggers too powerfully
even when it's drained all the way to the bottom
Therefore, it's not going to stop its simultaneous
vacuum OUT out down to the
sump tote right here so the two issues
that we can end up taking out of this tutorial are
ONE: that your system
needs a sufficient and constant amount of
water supply in order to feed that pressure
to meet that [desired] pressure difference you know, when you have a
auto siphon within you system or incorporated in your system somewhere
The SECOND: Which we just pointed out is that
on your bell siphon itself
you need to design in a way where it would be more [aerodynamic]
[of a] flow when it goes out as well as
when it pulls UP Alright folks! That about wraps things up for the day I hope you stay tuned
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I hope you have a good day and see you soon God bless!