I can vouch for more head pressure means faster rebuild times. I know of one guy that runs his Gast 1023 at 28' water depth. He needs to rebuild it about once every 18 months.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).