Washer water out from basement
Spend the money to replace the old Pump. 
When you are pumping the Laundry out to the yard - those chemicals in your detergent are also going to the Yard and into the water basin of your locality.

If you are outside of city provided water i.e on a well system - how do you feel about having chemicals such as phosphorous in your drinking water, shower water etc.. 
Of course perhaps you might glow in the dark when electrons hit you :-)