| Well I'll have to get a picture of the over flows later. I'll try to describe the overflow/silencer kit.
There are two overflow boxes, each has a 1 inch drain in the bottom of them. There is a stand pipe (1 inch pvc pipe) with a threaded fitting on one end (this screws into the bulkhead fitting) the pipe is cut off about 4 to 6 inches from the top or the over flow box. On the top of this pipe there is a piece that is about 4 inches tall, it has a pvc coupling to attach it to the stand pipe, then there are slots cut into the pipe on both sides about 1 to 2 inches from the top. Over the top of that there is like an upside down cup made from clear acrylic over it and the lip goes down past the cut outs in the piece of pvc. I had to put a very small hole in the lid otherwise it acted like a upside down cup in water, no water could get to the stand pipe, so what would happen is the tank would just continually fill until it overflowed. Once I put the small hole in the top of the cup it allowed the water to come up under the cup and go down the pipe.
Anyway, as far as the micro bubbles go, I think I found what it is. 1) when the stand pipes start to suck air along with the rate at which the water is flowing into the wet/dry where the bio balls are, that is where the micro bubbles are being produced, so I figure if I get a fitting to go into the drains (where the bio balls are) and then put a 25 micron sock filter over them it should fix the issue. Either that or put a 25 micron sock filter over the 3 inch pipe that goes between the two wet/dry sumps (yes there are two in this system) here is a picture where you can see what I am talking about.
Dave |