the 2" discharge feeds into the 4" pvc via gravity which is regulated by a balance valve (the valve on the pipe on the left side of the picute) which splits off and feeds both sides of the 4" tubes.
Comment by Jon Nose on September 19, 2011 at 10:45pm
How you find the 4 inch pipes ??? ...coming to the point were I will be incorporating these into my system ... I have read that 4 inch pipes will clog with roots and stop water flow ... but where I live 6 inch pipes are twice the price of 4 inch ... my cheap dutch side say 4 inch . :)
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