If you use extension piping I would use thin wall lighter weight drain pipe not schedule 40. My concern is more about the motor quality and warranty and not the impeller material. Although sucking gunk including a dead fish up into the impeller could be a problem.
My testing has shown that most all ponds with even a little bit of wind action will normally and naturally mix down to 6 ft deep without a surface draw fountain. Your 1.25 ac pond if not tree sheltered and receiving good wind action could without a fountain naturally mix down to 7 maybe 8ft depending on wind exposure. Scott Aerator sales person saying "it will aerate down around 6ft out of the box" was a sales pitch or a naive representative.
Last edited by Bill Cody; 01/08/24 08:48 PM.
