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PostPosted: Sep 11th, '10, 19:52 
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Abdul -

Alas, I cannot take credit for the simple planter filter. I'd heard great things of the 'Skippy Filter', a DIY jobby that can be made out of easily obtainable materials and at a budget. Details of the skippy can be found here, then find your way through to the 'mini-me' Skippy! And you were quite right - the filter inlet is at the base. I have an elbow on the inside of the planter, which causes a whirlpool in the base, then a plastic disc that sits an inch or two up from the base of the filter, above which, the media sits. The idea is that the water flows in, solids get stirred up at the bottom, then have no choice but to rise up through the media and bacteria, then flow out the top outlet and into the GB.

Pond keepers generally will not put a lid on top of their Skippy Filter. This is to allow the sunlight to reach the top layer of the media and allow algae to bloom. This algae will consume the nitrates (and oxygen) and grow in abundance. This algal nitrate consumption negates the need for frequent 25-50% water changes, keeping the water chemistry optimal (so long as it's not algae vs fish for oxygen!).

However, I am wanting to keep algae out of my system, for obvious reasons. Hence, I keep my Skippy covered with a lid. As it happened, I had a planter saucer that fit perfectly into place!

I like your idea of putting a raft on top of the filter to maximise space. I think it would work very well, so long as the roots didn’t immerse too far into your chosen media within your filter. Plus, it would keep the sunlight outta the filter and keep algae at bay.

PJ –

I too am a gadgets-guy! Putting the additional filter together gave me another reason to spend quality time with my AP system. With concept, construction and integration, gave me several hours of unbridled pleasure in the garden and keeping me outta the house!

Do you have any experience with irrigation sequencing valves? It’d be interesting to hear of any of your encounters with low pressure sequencing valves, and your thoughts as to whether any irrigation valves could be bought across into the AP arena!

On a side note, I went to Golden Ponds this afternoon to stock up on trout for the main tank and some barra for the aquarium.

Alas, they had no barra of similar size to my current stock. They were either of a size that would eat my fish, or so small that mine would eat the new ones! Bummer!

Compromise, however was picking up 10 SP.

Also got 10 more trout for the main tank. I got the fish home, and on closer inspection, found some that either had bung eyes, one eye or a fat head?! Perhaps the broodstock were sourced from Montgomery Burns’ damn that was home to the three eyed fish, Simpsons’ styleeee! After a medicinal salt bath, pH and temperature adjustment, they joined their new schoolmates in the main system.

BTx


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PostPosted: Sep 11th, '10, 20:34 
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Abdul -

The tings I do for you, brother! I just donned my slippers and headed out to my shed to get the Skippy Filter and take some pics, so that I may share it with you and you can appreciate the inner sanctum of this highly advanced piece of bio-technology (... or something ...)


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PostPosted: Sep 11th, '10, 20:59 
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Seriously, this cant be healthy.
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You can duplicate Bluethumbs build by following these instructions...

http://leisure.prior-it.co.uk/build-diy ... lter.shtml

Or build one ala "Skippy"... who uses "rubbermaid" tanks...

http://www.skippysstuff.com/biofiltr.htm

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PostPosted: Sep 11th, '10, 21:18 
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Ahh yes - how right you are Rupe.

I did come across Jims Crazy DIY Filter a few weeks back, then, when I went to find it again on a different computer, I couldn't find the same page - hence the reference to the Skippy Filter.

Crazy Jim's instructions were a bit long winded for my liking. I like visual references! I do like his cleaning drain on the bottom, though. Very crafty!

BTx


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PostPosted: Sep 12th, '10, 05:21 
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Cheers bluethumb :] I like visuals too and your pics are quite illuminating. Am going to check out those links and beef up on the concept, see if I should go for that or keep my auto siphon planters. Yours looks like a neat job, I like how you've pushed the capacity of it all the way to the top of it, nicely optimized :thumbleft:

Regards sequencing valves you should ask Rupert there, he sells them and troubleshoots them so should be able to show you the light, albiet these low pressure ones you speak of I have not heard of as yet.

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PostPosted: Sep 13th, '10, 10:44 
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:thumbright: very tidy system .... and i like the look of those barra!! :headbang:

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PostPosted: Sep 29th, '10, 19:11 
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Maximum tank temperature today 24.7deg C at 1543hrs.

No casualties in the trout ward, although it may be time to consider freezing some 2L water bottles!

*gulp*


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PostPosted: Sep 29th, '10, 19:14 
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... Anyone reside in the North Perth/Leederville area care to earn beer/cash/hugs for doing the occasional drop-in to check up on my system in November whilst I am abroad?


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PostPosted: Sep 30th, '10, 08:42 
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Bt what thermometer do you have? is it one that monitors max/ min???
whered you get it?

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PostPosted: Sep 30th, '10, 08:50 
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freoboy wrote:
Bt what thermometer do you have? is it one that monitors max/ min???
whered you get it?


Naw, that reading was just from my constant monitoring.

It was still 21.2 at 6AM this morn.

BTx


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PostPosted: Oct 1st, '10, 04:30 
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BlueThumb wrote:
... Anyone reside in the North Perth/Leederville area care to earn beer/cash/hugs for doing the occasional drop-in to check up on my system in November whilst I am abroad?



Would love to, but the air fare would kill me!!!


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PostPosted: Oct 14th, '10, 19:28 
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... I know there are gonna be numerous variables that will effect evaporation within an AP system - ie. Ambient air temperature and humidity, GB and FT surface area, transpiration via plants etc etc etc. However, it would seem that I have been losing up to 50L+ a fortnight - maybe more? All this within a 1300Lish system. Sound normal? I hear the 10% per annun top up theory - but I'm looking at exceeding that sevenfold! I have no leaks, a covered FT, GB inlets spill below media and not on surface of GB, and GB water level is 25mm below top media level.

Any other reasonable explanations - other than the gods being thirsty?!

BTx


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PostPosted: Oct 14th, '10, 19:40 
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Very neat setup BT. I love the timber FT lid, what sort of timber is that ?
Also liked your explanation of bio-filter.
Great stuff. :thumbright:


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PostPosted: Oct 14th, '10, 19:52 
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Thanks Skipd -

The timber is batu - hardwood from Indonesia/Malaysia. Sealed with linseed oil, washed n scrubbed and doesn't seep when wet - very effective!


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PostPosted: Oct 14th, '10, 20:18 
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BlueThumb wrote:
I hear the 10% per annun top up theory


I don't think that is quite right. I think it is 10% per week top up during the hottest part of summer.

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