Backyard Aquaponics
A place to discuss aquaponics

Having given up on siphons for a couple of my beds due to grossly poor design, I have resorted to slow drain. Yay!

Basics first, I have a 1/4" hole for draining.
overflow is 1" tube

Beds are 600l

Fill time is just over 15mins I think.
Drain time is 1hr 30mins.

Is this too long a time? I am scared that if I speed up the drain then the fill will be way too long.
I do not have enough figures to calculate the effect of doubling the drain...

Any help? Or should I just leave it as is? I mean, at least it's draining now.

Hi kuda its fine dont play with it

KP you know my system doesn't drain empty at all

OK so that's cool... is 1 fill every 2 hrs good enough?

Yep the glass house system has been running like that for 2 years

F&F is that as in like mine or KPs system?

Excellent, I guess I am now a multi system operator
Siphons aren't everything... :-)

Should explain it better my SYSTEM HAS BEEN RUNNING LIKE THAT FOR 2 YEARS AND THATS TURNED OFF FROM 6 PM TILL 8 AM opps bloody caps lock

so you fill at 8, 10, 12, 2, and 4 o'clock?
no fill at night? Why is that?

Cheers F&F

cos overnight it cools the water to much and that much filtering is ok for 50 trout in 1000 litre just rember i have air in there 24 7

How about 200 trout and 50 silvers in 3000l of water?
(I have 1200l of gb running on siphons 24hrs as well as this 2400l of new slow drain beds)

Yes I have no air atm... but that's another thread. I want a cheap durable rugged serious blower that's so efficient as to be cheap to run.

Thats a good ratio kuda, dont stress about the draining.

As for air - http://cgi.ebay.com.au/35W-70-LTR-PISTON-SILENT-Electromagnetic-AirPump-Resun_W0QQitemZ140328088190QQcmdZViewItemQQptZAU_Pet_Supplies?hash=item20ac34b27e&_trksid=p3286.c0.m14&_trkparms=65%3A1%7C66%3A2%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A1%7C294%3A50

will run your tank for 12 hours quite happily, about 6 airstones probably.

I have a similar 20 watt, running 10,000 litres of water with 4 stones.

Thats the kind i have atm mines a larger one running 10 air stones

I you include the indoor tank, and the as yet not connected pond, and sumps, I have close to 10kl.
I have a noisy aquarium airpump inside... what are my chances do you think of plumbing air over 25m from where the blower will be?
What size pipe would I need?

All this for silent air inside the house.