Michael, Do you know the output of your pump,8- 10 ft of soaker hose could be like having 4-5 conventional diffusers.You are getting some great response to a serious situation.I would concentrate on known factors such as pump output and then match that to a diffuser and then be sure those two components match your pond size ,age, goals fish load etc,etc.Even sized properly startup in the summer can be delicate.It is almost impossibe without some system specs.Always have a footprint of some type under the membrane to keep the bottom sediments in place.
