Getting the new factory taste out of a pressure pump

[ChickenRob]

Hi, I am building a continuous seltzer system based on the kegland lid and a new keezer build. My water supply is off an RO system and is about 15-20 psi lower than I’d need based on my estimates on where other people set their CO2 pressures and the instructions for using the lid.

As a result I got a sureflo pessure booster pump with a small bladder reservoir. When I put it in the system, I get the pressure I want, but now the water tastes like the pump is ruining the flavor.

Anyone have suggestions for getting rid of this taste?

thanks