Be cautious moving your diffusers into deeper water. The deeper the diffusers, the harder the pump has to work. Do you have a pump curve for your aeration system? This will help us determine how deep they can go before stressing the pump and/or losing it's water moving ability. A quick web search for "matala 4 pro" indicates that it was designed for up to a 20,000 gallon pond. I think your pond is substantially bigger than that and it may be undersized to begin with. Your pond will be closer to 180,000 gallons. Get some specs posted on your pump and we can go from there.

Welcome to the forums, BTW! You have a nice looking pond.

Last edited by Quarter Acre; 05/04/21 03:16 PM.
Fish on!,
Noel