Originally Posted by esshup
Originally Posted by fishfrank
Actually my plan was to have the three diffusers ganged together off one single weighted line.


Then you can ditch the manifold valves, but I'd still recommend the other items. I am assuming when you say ganged together you mean all at the same place in the pond.

Yes all 3 together in the middle of the pond. One other thing I am trying to figure out are the fittings required to go from the 1/4 NPT outlet on the pump to the pop off valve and pressure gauge. Also the transition from the 1/4 to the 3/4 poly and back down to the 5/8 weighted.