Pump dilemma ? I would appreciate any ones in sites

[babnika]

I am away from my tank usually between 10 days possibly a few months this winter & by running two pumps at 50%then if one goes then I can bump up the other to 100%.
Until I can get home or have someone that I deem capable of swapping out my pump. I find larger motors to make less noise at 50% then being maxed out. Will be close to 11 feet of head presser.