[noj33]

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

 

[fishwolfe]

it would work.but i would put the pumps in the back corners and connect the tubes to help equalize the flow in the manifold.

 

[Britnick]

Hi

I’m assuming you are using gravel and not sand as a substrate?

OK â€" it will work, but there was a reply post that talked about using a UGF plate with reverse flow, which I think is your best bet and I have used this very successfully previously. Things to keep in mind:
1. As with all UGF kit, if your fish dig it up the water will take the path of least resistance and flow through the uncovered outlets
2. Keep in mind the more holes you create the more pressure/flow the pump(s) will need to generate
3. If you do have two pumps on the same circuit you need to make sure they are both meeting the same amount of resistance (i.e. the pressure is the same at each pump) otherwise the efficiency will be reduced

Please let me know what you decide to go with 8)

Nick