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Ok, so i read the DIY section about under-gravel jets and i'd like to try to set them up in my tank. The set up in that section had several jets that shot water just above the gravel line. I'd like to ask for an opinion of someone who has some experience. What I'd like to try to do is use a matrix of 1/2'' or 3/4'' PVC, off a central supply line. the side lines would be spaced 5-6 inches apart and drilled with 3/16inch holes to allow the water to push up through the gravel (moving the debris up to the filters ). The system would be supplied with by one, or two, Rio Aqua 200 jets (290 GPH). Does someone with experience think it'd work? I think it'd be very simple to set up and cheap (around $40.00). The link leads to a simple drawing that i just did.
Thanks for any advice!! :-?

http://s299.photobucket.com/albums/mm30 ... mod003.jpg
 

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You could do the same thing using an undergravel filter plate with a reverse flow powerhead.

I think the whole idea of having the undergravel jets is to keep the water circulating and directing the gunk towards your filter intakes. It never has a chance to hit the gravel although no matter how you set it up there always seems to be some spots where the detritus collects. Of course that makes it that much easier to pick up during routine water changes. :thumb:
 

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I suspect RUGF works better with smaller tanks, at least easier. Say for a 20g tank with a foot print of 12"x24", and you use a powerhead with 200gph, that translate into something like 0.7gal/inch3/hour, not sure that is enough to keep the detritus from settling.

Let's assume that it is, for a bigger than with foot print of 72"x24" (180g?) it would need 1200gph??

For bigger tank, you may need lots of powerheads or a really big pump
 
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